Identifying Atoms

Front

What particles are found in the nucleus of an atom?

Back

Protons and 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 determines the atomic number of an element?

Back

The number of protons in the nucleus.

Front

What is the difference between isotopes of an element?

Back

Isotopes have the same number of protons but different numbers of neutrons.

Front

How many protons does a Nitrogen atom have?

Back

7 protons.

Front

If an atom has 12 protons, how many electrons does it need to be neutral?

Back

12 electrons.

Front

What is the mass number of an atom?

Back

The total number of protons and neutrons in the nucleus.

Front

What is an ion?

Back

An atom that has gained or lost electrons, resulting in a charge.