Elements
H
Hydrogen
Elements found in pairs
Diatomic
First row except for H
Alkali Metals
Electrons orbit this
Nucleus
C
Carbon
Substances that can not be chemically divided
Element
Last row
Noble Gasses
Positive part
Proton
Au
Gold
A molecule consisting of two different atoms
Compound
Columns 3-12
Transition Metals
Paired with protons in the nucleus
Neutrons
K
Potassium
Two or more elements chemically bonded
Molecule
Al Sn
Other Metals
Negatively charged part
Electrons
Pb
Lead
An atom or molecule with a net electrical charge
Ion
Column 17
Halogens
Path that electrons follow
Orbit