Introduction to Atoms

Front

What is an atom?

Back

The smallest unit of matter that retains the properties of an element.

Front

What is the atomic number?

Back

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

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, with no charge.

Front

What are electrons?

Back

Tiny, negatively charged particles that orbit the nucleus of an atom.

Front

What is the nucleus of an atom?

Back

The central part of an atom, containing protons and neutrons.

Front

What charge do protons have?

Back

Positive charge.

Front

What charge do electrons have?

Back

Negative charge.

Front

What charge do neutrons have?

Back

No charge (neutral).

Front

How do you find the number of neutrons in an atom?

Back

Subtract the atomic number from the atomic mass.