Unit 2B Review

Front

What is the lowest energy state of an atom?

Back

Ground State

Front

How do you calculate the mass number of an atom?

Back

The number of protons plus neutrons.

Front

Where are electrons located in an atom?

Back

In spaces around the nucleus.

Front

What is the molar mass of Sodium Chloride (NaCl)?

Back

58.44 g/mol

Front

Which subatomic particle is the smallest?

Back

Electrons.

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 neutrons carry?

Back

No charge (neutral).

Front

What charge do electrons carry?

Back

Negative charge.

Front

What is the nucleus of an atom composed of?

Back

Protons and Neutrons.