Atomic Structure

Front

True or False - Protons and Neutrons have about the same mass.

Back

True - They have about the same mass.

Front

What is the relative mass of a proton?

Back

1

Front

Subatomic particles that are neutral in charge are called?

Back

Neutrons.

Front

What number indicates the nucleus?

Back

4

Front

What value represents the number of protons in an element?

Back

Atomic Number.

Front

What are the three main subatomic particles?

Back

Protons, Neutrons, Electrons.

Front

What charge do protons carry?

Back

Positive charge.

Front

What charge do electrons carry?

Back

Negative charge.

Front

What is the mass number of an atom?

Back

The total number of protons and neutrons in the nucleus.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.