1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

1

H

He

Hydrogen

Helium

2

Li

Be

B

C

N

O

F

Ne

Lithium

Beryllium

Boron

Carbon

Nitrogen

Oxygen

Fluorine

Neon

3

Na

Mg

Al

Si

P

S

Cl

Ar

Sodium

Magnesium

Aluminum

Silicon

Phosphorous

Sulfur

Chlorine

Argon

4

K

Ca

Sc

Ti

V

Cr

Mn

Fe

Co

Ni

Cu

Zn

Ga

Ge

As

Se

Br

Kr

Potassium

Calcium

Scandium

Titanium

Vanadium

Chromium

Manganese

Iron

Cobalt

Nickel

Copper

Zinc

Gallium

Germanium

Arsenic

Selenium

Bromine

Krypton

5

Rb