Ch. 7 Ionic & Metallic Bonding

Front

What is the correct ionic compound formula for barium nitride?

Back

Ba₃N₂

Front

What is a mixture of two or more metals called?

Back

Alloy

Front

What does the '2' in the formula MgBr₂ indicate?

Back

There are 2 bromide ions for every magnesium ion.

Front

How can a formula unit be best described?

Back

The chemical formula for an ionic compound.

Front

How do nonmetals tend to form ions?

Back

By gaining electrons.

Front

What is an ionic bond?

Back

A chemical bond formed between two ions with opposite charges.

Front

What is the charge of a barium ion?

Back

Ba²⁺ (2+ charge)

Front

What is the charge of a nitride ion?

Back

N³⁻ (3- charge)

Front

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

Back

They indicate the ratio of ions in the compound.

Front

What is a metallic bond?

Back

A bond formed by the attraction between positively charged metal ions and the electrons in a metal.