Atomic Structure

Front

Subatomic particle that has a positive charge

Back

Proton

Front

The center of an atom is called the ________________.

Back

Nucleus

Front

The number 16 for the atomic element sulfur is the ________________.

Back

Atomic number

Front

Subatomic particles with a negative charge are called ________________.

Back

Electrons

Front

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

Back

20 protons.

Front

What is the charge of a neutron?

Back

Neutral (no charge)

Front

What are the three main subatomic particles?

Back

Protons, Neutrons, Electrons

Front

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

Back

Proton is approximately 1836 times more massive than an electron.

Front

What does the atomic number represent?

Back

The number of protons in an atom.

Front

What is the electron cloud?

Back

The region around the nucleus where electrons are likely to be found.