Atoms

Front

What is at the center of every atom?

Back

A nucleus.

Front

If an atom has 3 electrons, how many protons does it have?

Back

3.

Front

How many neutrons does nitrogen have?

Back

7.

Front

What are the negatively charged particles in an atom?

Back

Electrons.

Front

What are the subatomic particles that make up an atom?

Back

Electrons, protons, neutrons.

Front

What is the charge of a proton?

Back

Positive.

Front

What is the charge of a neutron?

Back

Neutral.

Front

What is the charge of an electron?

Back

Negative.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus.

Front

What is the mass number of an atom?

Back

The total number of protons and neutrons.