Chemistry Ch 6 Review 1

Front

What type of bond has a sea of electrons that are free to move?

Back

Metallic bond.

Front

Which bond can be considered to have 100% covalent character?

Back

O2 (oxygen molecule).

Front

How does an atom become a positive ion?

Back

By losing one or more electrons.

Front

How do polyatomic ions bond to other ions?

Back

With ionic bonds.

Front

What is an example of a polyatomic ion?

Back

NO3^-1 (nitrate ion).

Front

Define ionic bond.

Back

A bond formed by the electrostatic attraction between oppositely charged ions.

Front

What is a covalent bond?

Back

A bond formed when two atoms share one or more pairs of electrons.

Front

What is a metallic bond?

Back

A bond formed by the attraction between metal ions and a sea of delocalized electrons.

Front

What is a polyatomic ion?

Back

An ion composed of two or more atoms that are covalently bonded and carry a charge.

Front

What is the charge of a sodium ion (Na+)?

Back

+1 (it loses one electron).