Atoms

Front

What is an atom?

Back

The smallest part of any element, made up of protons, neutrons, and electrons.

Front

What does the nucleus of an atom contain?

Back

Protons and neutrons.

Front

What is the atomic number?

Back

The number of protons in an atom's nucleus.

Front

What is the mass number of an atom?

Back

The total number of protons and neutrons in the nucleus.

Front

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

Back

Mass number - Atomic number.

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 are electrons?

Back

Negatively charged particles that orbit the nucleus of an atom.

Front

What is the relationship between atomic number and mass number?

Back

Atomic number is the number of protons; mass number is the sum of protons and neutrons.

Front

What is an ion?

Back

An atom that has gained or lost one or more electrons, resulting in a charge.