2.
Subatomic particle with a positive charge
3.
Subatomic particle with a neutral charge
4.
Subatomic particle with a negative charge
5.
contains protons and neutrons
6.
is where the electrons are located
7.
is what we conduct to investigate
8.
is what occurs between elements
9.
is a when two or more different elements combine
11.
is a table of the elements
12.
are known as protons, neutrons, and electrons
