ATOMIC STRUCTURE

Front

Which letter represents an electron?

Back

C

Front

Which letter represents a neutron?

Back

A

Front

The center of an atom is known as the

Back

nucleus

Front

What is an atom mostly made up of?

Back

empty space

Front

A chemical reaction is balanced when

Back

Both sides have the same number of atoms

Front

What are the three main subatomic particles?

Back

Protons, Neutrons, Electrons

Front

What charge does a proton have?

Back

Positive charge

Front

What charge does an electron have?

Back

Negative charge

Front

What charge does a neutron have?

Back

No charge (neutral)

Front

What is the mass of a proton compared to an electron?

Back

Proton is much heavier than an electron.