Atoms and Molecules Review

Front

What is the smallest unit of all matter?

Back

atom

Front

To find the number of neutrons in an atom you have to ....

Back

Subtract the atomic number from the atomic mass.

Front

Which number represents the atomic number of this element?

Back

6

Front

A negatively charged particle that is located in the electron cloud of an atom is called...

Back

electron

Front

All ____________ are made up of two or more atoms bonded together.

Back

molecules

Front

What is the center of an atom called?

Back

nucleus

Front

What are the three main subatomic particles?

Back

protons, neutrons, electrons

Front

What is the charge of a proton?

Back

positive

Front

What is the charge of a neutron?

Back

neutral

Front

What is the charge of an electron?

Back

negative