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IUPAC Periodic Table of the Elements

H

He
helium

hydrogen
[1.007; 1.009]

2

3

4

Li

beryllium
9.012

11

14

15

16

17

4.003

5

atomicnumber

Be

lithium
[6.938; 6.997]

13

Key:

6

7

8

9

10

O

F

Ne

boron

carbon

nitrogen

oxygen

fluorine

neon

[10.80; 10.83]

B

[12.00; 12.02][14.00; 14.01]

[15.99; 16.00]

19.00

20.18

12

13

14

15

16

17

18

Na

Mg

Al

Si

P

S

Cl

Ar

sodium

magnesium

4

5

6

7

8

9

1011

12

silicon

phosphorus

sulfur

chlorine

argon

24.31

3

aluminium

22.99

26.98

[28.08; 28.09]

30.97

[32.05; 32.08]

[35.44; 35.46]

39.95

19

2021

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

Symbol
name
standard atomic weight

C

N

K

Ca

Sc

Ti

V

Cr

Mn

Fe

Co

NiCu

Zn

Ga

Ge

As

Se

Br

Kr

potassium

calcium

scandium

titanium

vanadium

chromium

manganese

iron

cobalt

nickel

copper

zinc

galliumgermanium

arsenic

selenium

bromine

krypton

39.10

40.08

44.96

47.87

50.94

52.00

54.94

55.85

58.93

58.69

63.55

65.38(2)

69.72

72.63

74.92

78.96(3)79.90

83.80

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

Rb

Sr

Y

Zr

Nb

Mo

Tc

Ru

Rh

Pd

Ag

CdIn

Sn

Sb

Te

I

Xe

technetium

ruthenium

rhodium

palladium

silver

cadmium

indium

tin

antimony

tellurium

iodine

xenon

101.1

102.9

106.4

107.9112.4

114.8

118.7

121.8

127.6

126.9

131.3

rubidium

strontium

yttrium

zirconium

niobium

molybdenum

85.47

87.62

88.91

91.22

92.91

95.96(2)...
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