Chemistry Chapter 4 Test Review

Front

Each neutron has an electrically __________ charge.

Back

Neutral

Front

A unique number for each element that equals the number of protons in an atom of that element is called __________.

Back

Atomic number

Front

Gamma rays have __________.

Back

No mass

Front

Each proton has a __________ electrical charge.

Back

Positive

Front

The electrons of an atom are found __________.

Back

In the outer 'cloud' surrounding the atom.

Front

The smallest unit of an element that retains the properties of that element is called __________.

Back

Atom

Front

The center of an atom, containing protons and neutrons, is known as __________.

Back

Nucleus

Front

The negatively charged particles in an atom are called __________.

Back

Electrons

Front

The positively charged particles in an atom are called __________.

Back

Protons

Front

The particles in the nucleus of an atom that have no charge are called __________.

Back

Neutrons