Atoms, particles, and valence

Front

What is the main component of an atom that occupies most of its volume?

Back

Empty space.

Front

What subatomic particle determines the identity of an element?

Back

Proton.

Front

What are the smaller particles that make up protons and neutrons?

Back

Quarks.

Front

What is the charge of an electron?

Back

Negative.

Front

What is the charge of a proton?

Back

Positive.

Front

What is the charge of a neutron?

Back

Neutral.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the mass number of an atom?

Back

The total number of protons and neutrons in the nucleus.

Front

What is a valence electron?

Back

An electron in the outermost shell of an atom that can participate in chemical bonding.

Front

How many valence electrons does Neon have?

Back

8.