Periodic Table Concepts

Front

Organized the Periodic Table in order of increasing atomic mass

Back

Medleeve

Front

Organized the Periodic Table in order of increasing atomic number

Back

Mosely

Front

Horizontal rows on the periodic table

Back

Periods

Front

Columns on the periodic table

Back

Groups

Front

Elements of the same group have in common similar

Back

physical and chemical properties

Front

Elements in the same period have in common

Back

The same number of energy levels/electron clouds

Front

Group 1 on the periodic table

Back

Alkali Metals

Front

Group 2 on the periodic table

Back

Alkaline Earth Metals

Front

Group 17 on the periodic table

Back

Halogens

Front

Group 18 on the periodic table

Back

Noble Gases