Periodic Table (Elements 1-20)

Atomic Number

100

He

Helium

200

Nitrogen

N

300

Si

14

400

K

19

500

40 amu

Ca

Atomic Symbol

100

Boron

5

200

Aluminum

Al

300

Beryllium

Be

400

Number 14

Si

500

Number 17

Cl

Chemical Name

100

Li

Lithium

200

F

Fluorine

300

10

Neon

400

12 amu

Carbon

500

31 amu

Phosphorus

Atomic Mass

100

Boron

11 amu

200

O

16 amu

300

Na

23 amu

400

Number 13

27 amu

500

Number 20

40 amu

Extra!

100

This gas is used in inflating a balloon.

Helium (He)

200

It is the gas that animals take in.

Oxygen

300

Used as a disinfectant also in swimming pools.

Chlorine (Cl)

400

Used in the production of microchip

Silicon (Si)

500

A light metal, used as a material in airplane manufacture.

Aluminum