Identify with ionic formulas the cations and anions of the...

Identify with ionic formulas the cations and anions of the following salts:
a. LiCl
b. $\mathrm{Cu}\left(\mathrm{NO}_3\right)_2$
c. $\mathrm{SrSO}_4$
d. $\mathrm{K}_3 \mathrm{PO}_4$
e. $\mathrm{K}_2 \mathrm{HPO}_4$
f. $\mathrm{CaCO}_3$

Key Concepts

Ionic Compounds

Ionic compounds are chemical compounds composed of positively charged ions (cations) and negatively charged ions (anions) held together by strong electrostatic forces. These forces create a crystalline lattice structure that results in many characteristic physical properties, such as high melting and boiling points, and electrical conductivity when molten or dissolved in water.

Cations

Cations are ions that carry a positive charge, typically formed when atoms or molecules lose one or more electrons. In ionic compounds, cations are usually metals or positively charged polyatomic ions, serving as the positive component that pairs with anions to maintain overall neutrality.

Anions

Anions are negatively charged ions produced when atoms or molecules gain one or more electrons. They are often non-metals or complex polyatomic species, and in ionic compounds, they act as the negative counterpart to the cations, balancing the overall charge of the compound.

Polyatomic Ions

Polyatomic ions are charged species consisting of two or more atoms bound together by covalent bonds. They behave as a single ion, carrying an overall charge that must be balanced by a corresponding cation in an ionic compound, and are common in many salts and minerals.

Ionic Formulas

Ionic formulas represent the simplest whole-number ratio of cations to anions in an ionic compound. These formulas reflect the charge balance between the positively charged and negatively charged ions, ensuring that the entire compound is electrically neutral.

Charge Neutrality

Charge neutrality is the principle that the total positive charges and negative charges in an ionic compound must equal zero. This concept is fundamental in writing ionic formulas, as it dictates the ratio and composition of the cations and anions in the compound.

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