Cation anion formula calculator

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In this case, you know that the anion carries a 2- charge, so you can say that 1 formula unit of lithium carbonate will contain as many lithium cations as needed to get an overall 2+ charge. Now, lithium is located in group 1 of the Periodic Table, which means that it forms 1+ cations by giving up its sole valence electron.2.4.1.1: Common Cations and Anions. The table seen here lists the most common cations and anions in Earth's crust. For the most part, these are the same elements that we discussed at the beginning of this chapter when we considered the composition of the crust and mantle. While thinking of individual atoms bonding together to form minerals ...Cations: Sodium, Na + Anions: Bromide, Br-Cations: Potassium, K + Anions: Iodide, I ... The formula for an ionic compound must contain the same number of positive and negative charges close charge ...Step 1. The objective of the question is to calculate the concentration of cation and fill the given blanks. (b) The concentration of cations and anions in solution can be predicted from the equation [cation] = Ksp for ionic solids in which the ratio of cation to anion is 1:1. Calculate the [cation) concentration of a saturated solution ...Here's the best way to solve it. SILVER CHL …. Table of Compounds Number Name Cation Anion Formula Image 1. cobalt (II) nitride 2. silver chloride 3. iron (III)oxide 4. copper (I) sulfide.To qualify for a business loan, a business needs a good debt service coverage ratio. See how lenders calculate a DSCR. Financing | What is WRITTEN BY: Matthew Sexton Published Apri...The ionic formula for sodium sulfide will thus be. Na2S. Sodium sulfide is a yellow in color, but aqueous solutions are colorless. Answer link. "Na"_2"S" When dealing with ionic compounds, it's important to know that the cation is always written first and the anion is written second. In this case, sodium,"Na", will be your cations and sulfide ...

These electrons are loosely attached to the atom and can easily be removed, leaving more protons in the atom than there are electrons, so that the resulting ion has a positive charge. Cations can also be formed from electron loss to many of the transition elements. Figure 7.3.3 7.3. 3: Periodic Table of Elements, notated with group numbers.Cation (Mg or Al): octahedral sites between the anion planes ! Halides: Halite (NaCl), Fluorite (CaF 2), Sylvite (KCl) ! NaCl and KCl: isostructural – 2 fcc interconnected – found in evaporites ! CaF 2: layer of anions with cations in cubic sites between the layers – found in hydrothermal deposits RECAP CHAP 7: NON-SILICATE MINERALS !Since the ratio of aluminum ions to iodide ions is 1:3, the Lewis structure shows one aluminum ion and three iodide ions. These charges combine to give a net charge of 0. These ions stick together ...These are real scientific discoveries about the nature of the human body, which can be invaluable to physicians taking care of patients. Have feedback about this calculator? The Anion Gap calculator evaluates states of metabolic acidosis.Let's do another one. Our goal is to calculate the pH of a .050 molar solution of ammonium chloride. So, for ammonium chloride, we have NH4+ and Cl- The chloride anions aren't going to react appreciably with water, but the ammonium ions will. So let's our reaction here. So NH4+ is going to function as an acid. It's going to donate a proton to H2O.

To use the Electronic Configuration Calculator you must follow these steps: Select the chemical element. Indicate if you want to obtain the electronic configuration of the selected element or of an ion. In case of selecting ion, you must indicate its charge, using the + or - signs followed by the number; For example, if we want to obtain the ...Then, calculate the concentration using volume. Remember, concentration in Molarity (M) has units of mols/L. 5. Determine the individual concentrations of all ions for each salt solution, considering your observed concentrations above. HINT: Use the stoichiometric ratios of cations and anions in the formula unit for each salt.Thanks to the special electronic properties of N 3 −, in Fig. 7c, the N atoms in the anion and cation will form LP ... which are calculated respectively by K–J equation …The formula for an ionic compound follows several conventions. First, the cation is written before the anion. Because most metals form cations and most nonmetals form anions, formulas typically list the metal first and then the nonmetal. Second, charges are not written in a formula. Remember that in an ionic compound, the component species are ...Question: 1. Complete the following table: Cation Anion Formula Name Camcium dichloride CaCl2 FeCl2 CO2 XXX Mg2+ XXX SO42- Calcium acetate Nickel(II) phosphite Nickel(II) phosphate Nickel(II) phosphide Copper(I) sulfate pentahydrate SO32- (form acid) XXX XXX XXX XXX Na2CO3 10H20 HCl(aq) HBr 6.To use the Electronic Configuration Calculator you must follow these steps: Select the chemical element. Indicate if you want to obtain the electronic configuration of the selected element or of an ion. In case of selecting ion, you must indicate its charge, using the + or - signs followed by the number; For example, if we want to obtain the ...

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Cation formula Anion formula ; This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. See Answer See Answer See Answer done loading. Question: The compound Ag2S is an ionic compound. What are the ions of which it is composed? Cation formula Anion formula . Show transcribed ...Chemical formulas for ionic compounds are called ionic formulas. A proper ionic formula has a cation and an anion in it; an ionic compound is never formed between two cations only or two anions only. The key to writing proper ionic formulas is simple: the total positive charge must balance the total negative charge.The oxygen atom has a 2− charge as an ion. To balance the positive and negative charges, we look to the least common multiple—6: two iron 3+ ions will give 6+, while three 2− oxygen ions will give 6−, thereby balancing the overall positive and negative charges. Thus, the formula for this ionic compound is Fe 2 O 3.Oxidation-Reduction. None. This page titled Carbonate Ion (CO₃²⁻) is shared under a CC BY-NC-SA 4.0 license and was authored, remixed, and/or curated by James P. Birk. Carbonate ion, a moderately strong base, undergoes considerable hydrolysis in aqueous solution. In strongly acidic solution, CO2 gas is evolved.3) after MEQ calulate the total cations in excell sheet and total anios in excell sheet. Then use the following ion balance formula. Ionic Balance = (Σcations - Σ Anions/ Σcations+ ΣAnions) x ...

Although the bond in a compound like X + Y-may be considered to be 100% ionic, it will always have some degree of covalent character. When two oppositely charged ions (X + and Y-) approach each other, the cation attracts electrons in the outermost shell of the anion but repels the positively charged nucleus.This results in a distortion, …This example problem demonstrates how to calculate the molarity of ions in an aqueous solution.Molarity is a concentration in terms of moles per liter of solution. Because an ionic compound dissociates into its components cations and anions in solution, the key to the problem is identifying how many moles of ions are produced during dissolution.Cations (positively charged) Anions (negatively charged) Ammonium NH 4 + Hydroxide OH-Nitrate NO 3- ... to balance it will need, one Pb 2+ ion and two NO 3-ions, so the formula is Pb(NO 3) 2;V DF is the electrochemical driving force acting on the ion of interest. Its value is generally reported in millivolts (mV). Its arithmetic sign (i.e., positive or negative) along with the knowledge of the valence of the ion (i.e., cation or anion) can be used to predict the direction of ion flow across the plasma membrane (i.e., into or out of the cell).The number of cations and anions that are combined in an ionic compound is the simplest ratio of whole integers that can be combined to reach electrical neutrality. The cation precedes the anion in both the written form and the formula.Aluminum and carbon react to form an ionic compound. Predict which forms an anion, which forms a cation, and the charges of each ion. Write the symbol for each ion and name them. Answer. Al will form a cation with a charge of 3+: Al 3+, an aluminum ion. Carbon will form an anion with a charge of 4−: C 4−, a carbide ion.Complete the following table: Cation Formula Anion Formula Compound Formula Cr3+ S2- Zn2+ Br Co²+ 02- pt Submit Answer Try Another Version 10 item attempts remaining 1 pt 1 pt 1 pt 1 pt 1 pt re to search Expert Solution. This question has been solved! Explore an expertly crafted, step-by-step solution for a thorough understanding of key ...Adding a common cation or common anion to a solution of a sparingly soluble salt shifts the solubility equilibrium in the direction predicted by Le Châtelier's principle. ... Calculate the solubility of calcium phosphate [Ca 3 (PO 4) 2] in 0.20 M CaCl 2. Given: concentration of CaCl 2 solution.Aug 1, 2023 · The following steps outline how to calculate the Radius Ratio. First, determine the radius of the cation. Next, determine the radius of the anion. Next, gather the formula from above = RR = Rc / Ra. Finally, calculate the Radius Ratio. After inserting the variables and calculating the result, check your answer with the calculator above. The strong ions found in plasma include: Na +, K +, Ca +, Mg +, Cl −, lactate, β-hydroxybutyrate, acetoacetate, and SO 4 2 −. Important buffer ions are: HCO 3 −, albumin, globulins, and phosphate. • The SIG only accounts for the differences between strong cations and strong anions (see Fig. 1). A simplified SIG can be estimated using ...Compa ratio is a formula used to assess the competitiveness of an employee’s pay. Learn how to calculate compa ratio. Human Resources | What is WRITTEN BY: Charlette Beasley Publis...

Looking at the chemical formula, aluminum chloride consists of the aluminum 3+ cation and the chloride anion. The chloride anion is the conjugate base to hydrochloric acid, which is a strong acid. Therefore, the chloride anion does not react with water.

Due to the presence of the denominator in 2, low-concentrated waters are especially sensitive to small deviation between total cations and anions. Note. In addition to the CBE formula in 2 (which is used in PhreeqC and aqion ) there are alternative definitions of CBE.Calculator Use. This online calculator is a quadratic equation solver that will solve a second-order polynomial equation such as ax 2 + bx + c = 0 for x, where a ≠ 0, using the quadratic formula. The calculator solution will show work using the quadratic formula to solve the entered equation for real and complex roots.The urine anion gap (UAG) calculator works by finding the difference between positive (cations) and negative (anions) ions in your urine.In the post below you can find information about the urine anion gap, its use, its normal range, and the risks of high values. If you are interested in other categories of calculators, you can visit our …Chemical Equation solver for TI-83+ v1.05 by ... Combustion Reaction Empirical & Molecular Formula Calc ... Search for common chemical ions and view their elements, ...There is a slide with examples about combining cations with anions. It goes like this: For AlX3+ and OX2− you get AlX2OX3 For A l X 3 + and O X 2 − you get A l X 2 O X 3. Wait what? So you have an atom of aluminum (in this case a cation because it loses three electrons) and an atom of oxygen (an anion since it receives two electrons).Mar 13, 2021 · To find the cation and anion in a compound, we have to first ask if the compound is ionic. Most ionic compounds are made up of two elements: a metal and a non-metal. Sodium chloride is an ionic compound that comprises ions. For example, the iconic ionic compound is sodium chloride, comprising sodium as the metal and chlorine as the non-metal. 3. Exercise 24.3.4 24.3. 4. Write the chemical formulas for. Amminetetraaquachromium (II) sulfate. Potassium hexacyanoferrate (III) Answer. 24.3: Complex Ion Nomenclature. Coordination complexes have their own classes of isomers, different magnetic properties and colors, and various applications (photography, cancer treatment, etc), so it makes ...r + / r - = (3) 1/2 - 1 = 0.732. As long as the radius of the cation is no smaller than 73% that of the anion, the CsCl structure, with its high Madelung constant, is possible. If the cation is larger than this, the structure is stable as the anions do not need to touch. If the cation is smaller than this, the cation and anion will not be in ...Cation goes first, and you use the name of the element without any changes. Ca remains calcium, and NH₄ is still ammonium. Nice and easy. This could be treated as …

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The allyl cation has 3 p-orbitals and two pi-electrons. The allyl radical has 3 p-orbitals and three pi-electrons. The allyl anion has 3 p-orbitals and four pi-electrons. Drawing out the molecular orbitals of each of these systems can be done in a stepwise manner.To begin with, the electrons and protons are balanced. Chlorine has 17 electrons (a charge of -17) and 17 protons (a charge of +17), so the overall charge is zero. Once the chlorine gains an electron, however, the total just becomes -1 since there are now 18 electrons and still 17 protons. As a result chlorine is a negative charged ion.The formula of an ionic compound represents the lowest whole number ratio of cations to anions, it is as simple as that. Most cations have charges of [+1] through [+6] while most ions have charges of [-1] through [-3]. Trick: Set # of Anions = Charge of Cation and set # of Cations = Charge of AnionThis makes chlorine a Cl^ (−1) anion. Ionic bonds form when the charges between the metal cation and non-metal anion are equal and opposite. This means that two Cl^ (−1) anions will balance with one Ca^ (+2) cation. This makes the formula for calcium chloride, CaCl_2. For the example Aluminum Oxide Al_2O_3 Aluminum has an …Deducing the ions in a polyatomic ionic compound from its empirical formula. Fe3 (PO4)2. Click the card to flip 👆. Cation: Fe2+. Anion:PO3- 4. Click the card to flip 👆. 1 / 35.The use of solubility rules require an understanding of the way that ions react. Most precipitation reactions are single replacement reactions or double replacement reactions. A double replacement reaction occurs when two ionic reactants dissociate and bond with the respective anion or cation from the other reactant.Two aluminum ions, each with a charge of 3+, would give us six positive charges, and three oxide ions, each with a charge of 2−, would give us six negative charges. The formula would be Al 2 O 3. Check Your Learning Predict the formula of the ionic compound formed between the sodium cation, Na +, and the sulfide anion, S 2−.Given an eluent anion or an analyte anion, two phases are observed, the stationary phase (denoted by S) and the mobile phase (denoted by M). As such, there is equilibrium between the two phases for both the eluent anions and the analyte anions that can be described by Equation \ref{1}. The table below gives the ranges of cation/anion radius ratios that give the best fit for a given coordination geometry. Critical Radius Ratio. This diagram is for coordination number six: 4 anions in the plane are shown, 1 is above the plane and 1 is below. The stability limit is at r C /r A = 0.414. Coordination number. Using the results of the comprehensive metabolic panel (CMP), the anion gap is the difference between measured cations (positively charged ions like Na+ and K+) and measured anions (negatively charged ions like Cl- and HCO3-). There are three types: serum, plasma, and urine anion gaps. The most common application of the anion gap is … ….

In general, scientists uses formula of Internuclear distance to test out the radii of ion then compared with the ion radii had done on X-ray diffraction: Internuclear distance (d) = r cation + r anion 2. *To calculate ion radii, Lande used ionic compound under solid state (ex: NaCl). This will minize the distribution of electrons.It can be possible to predict whether an atom will form a cation or an anion based on its position on the periodic table. Halogens always form anions, alkali metals and alkaline earth metals always form cations. Most other metals form cations (e.g. iron, silver, nickel), whilst most other nonmetals typically form anions (e.g. oxygen, carbon ...Are you curious about how your monthly salary is calculated? It’s essential to have a clear understanding of the monthly salary calculation formula to ensure you are being paid acc...Write the formula for aluminum nitride Write the formula for lithium oxide; 1. Write the symbol and charge of the cation (metal) first and the anion (nonmetal) second. …The anion gap is a calculation of the difference between the amounts of some negatively charged electrolytes (such as chloride and bicarbonate) and the amount of positively charged electrolytes (such as sodium) in your blood. The anion gap measurement is based on the results of individual electrolyte blood tests, which are commonly included in ...The anion gap is a calculation of the unmeasured anions and cations in the blood, based on anions and cations that we can measure (sodium, chloride and bicarbonate). This assumes that the body is electrochemically neutral, i.e. that the anions and cations balance out. If there is significant elevation of the anion gap then this …Free Chemistry calculator - Calculate chemical reactions and chemical properties step-by-stepPractice by balancing a few of the equations below. If you get stuck, click the links to use our chemical equation balance calculator to see the balanced result and the four easy steps to get there: Aluminium + Sodium Hydroxide + Water = Sodium Aluminate + Hydrogen Gas: Al + NaOH + H2O = NaAlO2 + H2. Cation anion formula calculator, Formula and structure: The nitrate chemical formula is NO 3-. The molar mass is 62.04 g/mol. Nitrate is the conjugate base of nitric acid HNO 3. The three oxygen anions are bound to a centre nitrogen cation through one double and two single bonds. In reality, because the effect of resonance the three bonds are equivalent, with an average ..., Commercial anion supplements such as those prepared by treatment of feedstuffs with hydrochloric acid or other anions can be effective with less risk to reduce feed intake than anionic salts. With a DCAD of -5 to -10 meq/100 grams of dietary DM, urine pH of 6.0 to 6.7 indicates that anion supplementation is effective., To use the Lewis Structure Calculator follow these steps: Enter the formula of the molecule in the field provided for it. For example, if we want to obtain the Lewis structure of the Sulfate ion, SO 4 – 2, we must first enter the charge by typing (-2) or by entering -2 in the charge field and pressing the «Add» button. Then we write the rest of the formula …, Ion. Electron transfer between lithium (Li) and fluorine (F). Forming an ionic bond, Li and F become Li + and F − ions. An ion ( / ˈaɪ.ɒn, - ən /) [1] is an atom or molecule with a net electrical charge. The charge of an electron is considered to be negative by convention and this charge is equal and opposite to the charge of a proton ..., Calculate the amount of energy released when 1 mol of gaseous Li + F − ion pairs is formed from the separated ions. The observed internuclear distance in the gas phase is 156 pm. Given: cation and anion, amount, and internuclear distance. Asked for: energy released from formation of gaseous ion pairs. Strategy: , Formula used: Anion Gap in mEq/L =[Na] - ([Cl] + [HCO3]) Normal: 12 (+/-) 4 mEq/L Anion gap is an 'artificial' and calculated measure that is representative of the unmeasured ions in plasma or serum. Calculate the difference between Cations, Anions in plasma using this free online physics calculator., Exercise 24.3.4 24.3. 4. Write the chemical formulas for. Amminetetraaquachromium (II) sulfate. Potassium hexacyanoferrate (III) Answer. 24.3: Complex Ion Nomenclature. Coordination complexes have their own classes of isomers, different magnetic properties and colors, and various applications (photography, cancer treatment, etc), so it makes ..., Question: Please define the Anion Gap and its utility in diagnosis and how it relates to osmolality. Anion Gap The anion gap provides an estimation of the unmeasured anions in the plasma and is useful in the setting of arterial blood gas analysis. It is especially useful in helping to differentiate the cause of a metabolic acidosis, as well as following the response to therapy., Polyatomic ions have defined formulas, names, and charges that cannot be modified in any way. Table 3.4.1 3.4. 1 lists the ion names and ion formulas of the most common polyatomic ions. For example, NO−3 NO 3 − is the nitrate ion; it has one nitrogen atom and three oxygen atoms and an overall 1− charge., Cation formula Anion formula. The compound AlBr 3 is an ionic compound. What are the ions of which it is composed? Cation formula: Anion formula; Here's the best way to solve it. Who are the experts? Experts have been vetted by Chegg as specialists in this subject., Key Points. Cation exchange capacity ( CEC) is the total capacity of a soil to hold exchangeable cations. CEC is an inherent soil characteristic and is difficult to alter significantly. It influences the soil's ability to hold onto essential nutrients and provides a buffer against soil acidification. Soils with a higher clay fraction tend to ..., In this problem, we are tasked to identify the cation and anion of the given ionic compounds. We can identify the charge from the group number or the assigned charge of the polyatomic ions. For transition metals with multiple oxidation numbers, we can identify the charge from its ionic pair., Calculator Use. This online calculator is a quadratic equation solver that will solve a second-order polynomial equation such as ax 2 + bx + c = 0 for x, where a ≠ 0, using the quadratic formula. The calculator solution will show work using the quadratic formula to solve the entered equation for real and complex roots., Interpretation of the results of anion gap (albumin or non-albumin corrected) Anion Gap. Causes. High Anion Gap due to excess acid (AG >16) Lactic acidosis. Ketoacidosis - starvation ketosis, alcohol or diabetic ketoacidosis. Uremia. Methanol or Ethanol. Rhabdomyolysis., May 23, 2022 ... What are Divalent Ions? Trivalent Ions - Cations and Anions · Polyatomic Ions · Formulas of Ionic Compounds · Chemical Formula ... anion has a..., Transition Metal Ions. Most transition metals differ from the metals of Groups 1, 2, and 13 in that they are capable of forming more than one cation with different ionic charges. As an example, iron commonly forms two different ions. It can sometimes lose two electrons to form the \(\ce{Fe^{2+}}\) ion, while at other times it loses three electrons to form the \(\ce{Fe^{3+}}\) ion., In blood at pH 7.4: Strong Ion Difference (SID) is the difference between the concentrations of strong cations and strong anions. In normal human plasma the SID is 42 mEq/L (which suits fans of the Hitchhiker’s Guide to the Galaxy) The SID can be changed by two methods: (1) Concentration change. (2) Strong Ion changes., Exercise 4.6.2 4.6. 2. Write the chemical formula for an ionic compound composed of each pair of ions. the calcium ion and the oxygen ion. the 2+ copper ion and the sulfur ion. the 1+ copper ion and the sulfur ion. Answer a: Answer b: Answer c: Be aware that ionic compounds are empirical formulas and so must be written as the lowest ratio of ..., Suppose we have the following values: Sodium: 140 mEq/L. Chloride: 100 mEq/L. Bicarbonate: 24 mEq/L. Using the formula, we can calculate the Anion Gap: Anion Gap = (140 - (100 + 24)) = 16 mEq/L. See also Apokyn Calculator Online. In this example, the Anion Gap is 16 mEq/L, which falls within the high range, indicating a potential metabolic ..., 1. Count up the valence electrons: (1*5) + (3*6) + 1 (ion) = 24 electrons. 2. Draw the bond connectivities: The three oxygens are drawn in the shape of a triangle with the nitrogen at the center of the triangle. 3. Add octet electrons to the atoms bonded to the center atom: 4., Transition Metal Ions. Most transition metals differ from the metals of Groups 1, 2, and 13 in that they are capable of forming more than one cation with different ionic charges. As an example, iron commonly forms two different ions. It can sometimes lose two electrons to form the \(\ce{Fe^{2+}}\) ion, while at other times it loses three electrons to form the \(\ce{Fe^{3+}}\) ion., Anions include halogens and nonmetals. Keep in mind, hydrogen can go either way, carrying either a positive or negative charge. Write the cation first, followed by the anion. Adjust the subscripts of the cation and anion so the net charge is 0. Write the formula using the smallest whole number ratio between the cation and anion to balance charge., There is a slide with examples about combining cations with anions. It goes like this: For AlX3+ and OX2− you get AlX2OX3 For A l X 3 + and O X 2 − you get A l X 2 O X 3. Wait what? So you have an atom of aluminum (in this case a cation because it loses three electrons) and an atom of oxygen (an anion since it receives two electrons)., The anion is the conjugate base of a weak acid. For example, the acetate ion is the conjugate base of acetic acid, a weak acid. Therefore, a soluble acetate salt, such as sodium acetate will release acetate ions into the solution, which a few of these will interact with water, forming unionized acetic acid and the hydroxide ion., Table of Ions. "An ion is a small electrically charged particle. Ions are single charged atoms (simple ions) or small charged "molecules" (polyatomic ions).". Simple ions include Na +, Ca 2+, and Cl -. Polyatomic ions include (NH 4) +, (CO 3) 2-, and OH -. Unlike protons and neutrons, electrons can be easily removed and added to an ..., mixed bed calculation, then anion and then the cation. This way you can calculate or estimate the waste water required which must pass through the preceding unit during the design. For this example I will assume a simple co-flow regenerated system of cation – anion followed by a polishing mixed bed., The Ionic Formula Calculator is an online tool that can quickly find various properties of the anion or cation of an element. An ion is one of the most basic units of elements in the field of chemistry. The properties of ions …, The following steps outline how to calculate the Radius Ratio. First, determine the radius of the cation. Next, determine the radius of the anion. Next, gather the formula from above = RR = Rc / Ra. Finally, calculate the Radius Ratio. After inserting the variables and calculating the result, check your answer with the calculator above., Formula: t + = Current Carried by an Cation / Total Current Passed Through The Solution. Note: Transport Number is also known as Transference number or Hittorf number. During electrolysis, the electric charge is carried in the electrolyte by both cations and anions, but the amount of charge they transport is different. Calculate transport ..., Calculate the force of attraction between a cation with a valence of +2 and an anion with a valence of -2, the centers of which are separated by a distance of 3.4nm. Calculate the energy of attraction between a cation with a valence of +4 and an anion with a valence of -1, the centers of which are separated by a distance of 1.6 nm., the normal anion gap depends on serum phosphate and serum albumin. the normal AG = 0.2 x [albumin] (g/L) + 1.5 x [phosphate] (mmol/L) albumin is the major unmeasured anion and contributes almost the whole of the value of the anion gap. every 1g/L decrease in albumin will decrease anion gap by 0.25 mmoles. a normally high anion gap acidosis in a ..., Exercise 5.5.2 5.5. 2. Write the chemical formula for an ionic compound composed of each pair of ions. the calcium ion and the oxygen ion. the 2+ copper ion and the sulfur ion. the 1+ copper ion and the sulfur ion. Answer a: Answer b: Answer c: Be aware that ionic compounds are empirical formulas and so must be written as the lowest ratio of ..., Mar 14, 2017 ... Number of electrons in an ion equals to the number ofof protons subtract the charge of the ion. [math]O^{-2}[/math] has 8 protons and a ...