3.5 Formulas

What is the formula for a compound with lithium and oxygen?

• Li₂O

• LiO

• LiO₂

• OLi₂

What is the formula for a compound with beryllium and oxygen?

• BeO

• Be₂O

• BeO₂

• OBe

What is the formula for a compound with beryllium and nitrogen?

• Be₃N₂

• N₂Be₃

• BeN

• NBe

Metals usually have a

• positive charge

• neutral charge

• negative charge

• charge that depends on what it bonds with

Nonmetals usually have a

• positive charge

• neutral charge

• negative charge

• charge that depends on what it bonds with