Atomic Structure Review

Front

For an atom to be neutral (no charge), it must have an equal number of _____ and ______.

Back

protons and electrons.

Front

Atoms are the basic _________ of a chemical element.

Back

unit.

Front

What is an electron cloud?

Back

It surrounds the nucleus and contains the electrons.

Front

What is the charge of an electron?

Back

Negative.

Front

What is the charge of a proton?

Back

Positive.

Front

What are protons?

Back

Positively charged particles found in the nucleus of an atom.

Front

What are neutrons?

Back

Neutral particles found in the nucleus of an atom.

Front

What is the nucleus of an atom?

Back

The central part of an atom that contains protons and neutrons.

Front

What is the atomic number?

Back

The number of protons in the nucleus of an atom, which determines the element.

Front

What is an ion?

Back

An atom or molecule that has a net electric charge due to the loss or gain of one or more electrons.