Atoms and the Periodic Table

Front

What does the number 1.00794 represent?

Back

Atomic mass of Hydrogen.

Front

All matter is made of _________.

Back

Atoms.

Front

How many protons does Oxygen (O) have?

Back

8 protons.

Front

The amount of matter in an object (like weight) is its...

Back

Mass.

Front

A proton has a ___________ charge.

Back

Positive charge.

Front

What is the smallest unit of an element?

Back

Atom.

Front

What is the center of an atom called?

Back

Nucleus.

Front

What particles are found in the nucleus of an atom?

Back

Protons and neutrons.

Front

What is the charge of a neutron?

Back

Neutral.

Front

What is the charge of an electron?

Back

Negative.