Front

Which particle in an atom has no charge?

Back

Neutron

Front

The atomic number is equal to the number of:

Back

Protons

Front

An ion with a negative charge is called a:

Back

Anion

Front

In a neutral (no charge) atom, the number of electrons equals:

Back

The number of protons

Front

How many protons are in sodium (Na)?

Back

11

Front

What is the charge of a proton?

Back

Positive

Front

What is the charge of an electron?

Back

Negative

Front

What is the charge of a neutron?

Back

No charge (neutral)

Front

What is an atom?

Back

The basic unit of a chemical element, consisting of a nucleus surrounded by electrons.

Front

What is the nucleus of an atom made of?

Back

Protons and neutrons.