Reading the Periodic Table

Staircase Thick Line - Left Side

Represents metallic elements

Staircase Thick Line - Right Side

Represents Non-Metallic Elements

Reading a Periodic Table - Columns

Represents Valence Electrons

Reading a Periodic Table - Rows

Represents Amount of Energy Levels (Rings!)

Atomic Number

Number of Protons is an Element. Same for all element forms

Mass Number

Number of Neutrons and Protons. Differs for each Isotope

Atomic Mass

Average mass of an atom. Taken from naturally occuring samples

Valence Electrons

Electrons located in the outermost energy level

Energy Levels

Represented by the rings. More rings means more electrons

Isotope

Atoms with the same proton and neutron count but differing electron count