
Atoms Versus Molecules
6th Grade · Science · 30 min
Lesson Preview
Learning Objective
I can distinguish between atoms and molecules.
- 1
Atoms are made of three tiny particles called protons, electrons, and neutrons.
- 2
The number of protons in an atom determines what element it is, and this is also known as its atomic number.
- 3
Electrons have a negative electrical charge and are pulled towards the positively charged protons by the electric force.

