Atoms

Front

What is the basic unit of matter?

Back

Atoms are the basic unit of matter.

Front

Where is the atomic number located on the periodic table?

Back

The atomic number is located at the top of the element's box.

Front

What does the atomic number represent?

Back

The atomic number represents the number of protons in an atom.

Front

Where is the atomic mass located on the periodic table?

Back

The atomic mass is located at the bottom of the element's box.

Front

What does the atomic mass represent?

Back

The atomic mass represents the total number of protons and neutrons in an atom.

Front

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

Back

The number of neutrons can be found by subtracting the atomic number from the atomic mass.

Front

What is the charge of a proton?

Back

Protons have a positive charge.

Front

What is the charge of a neutron?

Back

Neutrons have no charge (they are neutral).

Front

What is the charge of an electron?

Back

Electrons have a negative charge.

Front

What is the relationship between protons and electrons in a neutral atom?

Back

In a neutral atom, the number of protons equals the number of electrons.