Consider an ion with the symbol X²⁺ formed from a representative element.

d. What is the formula of the compound formed from X and the nitride ion?

Provide the molecular formula for the following compound: Sodium dichromate

Write the correct ionic formula for the compound formed between each of the following pairs of ions:

e. Al³⁺ and S^2-

Write the correct ionic formula for the compound formed between each of the following pairs of ions:

b. Ca²⁺ and S^2-

Write the symbol for the cation in each of the following ionic compounds:

a. FeCl₂

The elements in red in the periodic table can form cations having more than one charge. Write the formulas and names of the compounds that are formed between the red cations and the blue anions depicted in the periodic table.

Consider the following Lewis symbols for elements X and Y:

e. What would be the formula of a compound of X and sulfur?

Consider the following Lewis symbols for elements X and Y:

d. What would be the formula of a compound of X and Y?