Energy Unit Test

Front

What is the overall charge of a neutral atom?

Back

Zero

Front

What makes up the majority of an atom's mass?

Back

Neutrons and Protons

Front

What happens when two like poles of a magnet are brought together?

Back

They repel each other

Front

Which part of the atom has a positive charge?

Back

Proton

Front

The number of protons in an atom is called the:

Back

Atomic number

Front

What are the three main subatomic particles of an atom?

Back

Protons, Neutrons, Electrons

Front

What is the charge of an electron?

Back

Negative

Front

What is the nucleus of an atom?

Back

The central part of an atom containing protons and neutrons.

Front

What is mass number?

Back

The total number of protons and neutrons in an atom.

Front

What is an isotope?

Back

Atoms of the same element with different numbers of neutrons.