Question

Ionic compounds can be made from a metallic ion and a nonmetallic ion. Metallic ions are positive (cations). Nonmetallic ions are negative (anions). For each equation given below, enter the sum in the space provided.

(+1) + (–1) =
(+2) + (–2) =
2(+1) + (–2) =
(+3) + 3(–1) =
3(+2) + 2(–3) =

Answer 1

(+1) + (–1) = +1-1=0

(+2) + (–2) =+2-2= 0

2(+1) + (–2) =+2-2= 0

(+3) + 3(–1) = +3-3=0

3(+2) + 2(–3) =+6-6=0

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Answer 2

Answer:

The sum of charges asked in the given question is found to be:

1) (+1) + (-1) = 0

2) (+2) + (-2) = 0

3) (+3) + 3(-1) = (+3) + (-3) = 0

4) 3(+2) + 2(-3) = (+6) + (-6) = 0

Explanation:

• An ion is an atom or collection of atoms with a net  charge. Ions that contain fewer electrons than protons have a positive net charge and are called cations. Conversely, an ion that contains more electrons than a proton has a negative net charge and is called an anion.
• Ionic compounds contain both cations and anions in such ratio that do not generate a net charge (i.e., a net charge of zero). In covalent shared compounds, electrons are shared between bonded atoms and are of interest to multiple nuclei at the same time.
• In contrast, ionic compounds contain cations and anions  instead of neutral molecules. Ionic compounds are bound by attractive electrostatic interactions between cations and anions. In  ionic compounds, cations and anions are placed in space, resulting in an extended three-dimensional array which maximizes the number of attractive electrostatic interactions.
• For stability of any compound, the net charge should always be zero.

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