First 20 elements, atomic number and mass.

20 cards

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Created Nov 17, 2010
by
baileysa

 

 
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  Side A   Side B
1
Hydrogen
 

1

   H

1

2
Helium
 

4

  He

2

3
Lithium
 

7

  Li

3

4
Beryllium
 

9

   Be

4

5
Boron
 

11

    B

 5

6
Carbon
 

12

   C

6

7
Nitrogen
 

14

    N

7

8
Oxygen
 

16

  O

8

9
Fluorine
 

19

  F

9

10
Neon
 

20

Ne

10

11
Sodium
 

23

Na

11

12
Magnesium
 

24

  Mg

12

13
Aluminium
 

27

 Al

13

14
Silicon
 

28

 Si

14

15
Phosphorus
 

31

  P

15

16
Sulphur
 

32

  S

16

17
Chlorine
 

35.5

 Cl

18
Argon
 

40

  Ar

18

19
Potassium
 

39

K

19

20
Calcium
 

40

Ca

20

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