Atomic Structure

Front

Subatomic particles with a negative charge

Back

Electrons

Front

Elements in the same ________ are more chemically similar.

Back

group

Front

An element has an atomic number of 20. This means it has:

Back

20 protons.

Front

The number 16 for the atomic element sulfur is the

Back

atomic number.

Front

Subatomic particle that has a positive charge

Back

proton.

Front

What is the center of an atom called?

Back

Nucleus.

Front

What are the three main subatomic particles?

Back

Protons, Neutrons, Electrons.

Front

What is the charge of a neutron?

Back

Neutral (no charge).

Front

What determines the identity of an element?

Back

The number of protons (atomic number).

Front

What is the mass of a proton compared to an electron?

Back

Proton is much heavier than an electron.