group 1
group 2
Transition Metals
Group 13, 14, 15
group 16, 17, 18
100

symbol for lithium

Li

100

Beryllium

Be

100

Sc

Scandium

100

B

Boron


100

He

Helium

200

symbol for potassium

K

200

Calcium

Ca

200

Iron

Fe


200

Gallium

Ga

200

Kr

Krypton

300

Symbol is H

Hydrogen

300

Strontium

Sr

300

Cobalt

Co

300

C

Carbon

300

Radon

Rn

400
Francium's symbol is

Fr

400

Barium

Ba

400

Os

Osmium

400

Bi

Bismuth

400

Te

Tellurium

500

Rubidium's symbol is

Rb

500

Ra

Radium

500

Pm

Promethium

500

Hg

Mercury

500

At

Astatine

M
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