Atomic Structure

Front

Which particles make up the nucleus of an atom?

Back

Protons and neutrons.

Front

What are the maximum number of electrons that go on the first 3 energy levels?

Back

2, 8, 8.

Front

Choose the particle that has no charge.

Back

Neutron.

Front

How many valence electrons does oxygen have?

Back

6.

Front

What are valence electrons?

Back

The number of electrons on the outermost orbital.

Front

What is an atom?

Back

The basic unit of a chemical element.

Front

What is the charge of a proton?

Back

Positive.

Front

What is the charge of an electron?

Back

Negative.

Front

What is the atomic number?

Back

The number of protons in the nucleus of an atom.

Front

What is the mass number?

Back

The total number of protons and neutrons in an atom's nucleus.