The Atom

Front

What has changed many times regarding the atom?

Back

The model of the atom.

Front

What particle moves around the nucleus of an atom?

Back

Electron.

Front

What is located at the center of an atom?

Back

The nucleus.

Front

What are the positive particles of an atom called?

Back

Protons.

Front

Where would you find electrons in an atom?

Back

Near the outside of the atom.

Front

What is the charge of a proton?

Back

Positive.

Front

What is the charge of an electron?

Back

Negative.

Front

What is the overall charge of a neutral atom?

Back

Neutral (equal number of protons and electrons).

Front

What is the mass of a neutron compared to a proton?

Back

Approximately the same.

Front

What is the term for the number of protons in an atom?

Back

Atomic number.