Flashcard Bonding Ionic and Polyatomic

Front

What is the chemical formula for the ammonium ion?

Back

NH4+

Front

What is the charge of the chromate ion?

Back

CrO4^2-

Front

In the chemical formula for an ionic compound, which ion is written first?

Back

The positive ion (cation) is written first.

Front

What is the name of the ionic compound with the formula K3N?

Back

Potassium nitride.

Front

What is the correct ionic formula for a compound formed from calcium and cyanide?

Back

Ca(CN)2.

Front

What is the total charge of an ionic compound?

Back

Neutral/zero.

Front

What is a cation?

Back

A positively charged ion.

Front

What is an anion?

Back

A negatively charged ion.

Front

What is the significance of the subscripts in a chemical formula?

Back

They indicate the number of each type of ion in the compound.

Front

How do you determine the formula for a compound formed from a metal and a nonmetal?

Back

Combine the cation and anion, ensuring the total charge is neutral.