1St 20 Elements

Front 1

1

Back 1

hydrogen

Front 2

2

Back 2

helium

Front 3

3

Back 3

lithium

Front 4

4

Back 4

beryllium

Front 5

5

Back 5

boron

Front 6

6

Back 6

carbon

Front 7

7

Back 7

nitrogen

Front 8

8

Back 8

oxygen

Front 9

9

Back 9

flourine

Front 10

10

Back 10

neon

Front 11

11

Back 11

sodim

Front 12

12

Back 12

magnesium

Front 13

13

Back 13

aluminium

Front 14

14

Back 14

silcon

Front 15

15

Back 15

phosphourus

Front 16

16

Back 16

sulpher

Front 17

17

Back 17

chlorine

Front 18

18

Back 18

argon

Front 19

19

Back 19

potassium

Front 20

20

Back 20

calcium