Chemistry Review

Front

Alkali metals are the _________ reactive family on the Periodic Table.

Back

Most

Front

What happens as liquid iron cools?

Back

The atoms slow down and move closer together.

Front

This subatomic particle of an atom has NO charge.

Back

Neutron

Front

Definition of a gas:

Back

Indefinite shape and indefinite volume.

Front

Each column in the periodic table is called a _________.

Back

Group.

Front

What is the smallest unit of an element?

Back

Atom.

Front

What is the charge of a proton?

Back

Positive.

Front

What is the charge of an electron?

Back

Negative.

Front

What is the center of an atom called?

Back

Nucleus.

Front

What do we call a substance made of only one type of atom?

Back

Element.