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This is the online scientific reference and dictionary of inorganic chemicals. It contains a wide range of data and information for both synthetic and naturally occurring chemicals: thermodynamic and physical data, chemical properties, productions, preparations and their history and uses. Safety notes and precautions, especially those of hazardous chemicals, are also included.

1A

2A

3B

4B

5B

6B

7B

8

8

8

1B

2B

3A

4A

5A

6A

7A

O

1

1
H

2
He

2

3
Li

4
Be

5
B

6
C

7
N

8
O

9
F

10
Ne

3

11
Na

12
Mg

13
Al

14
Si

15
P

16
S

17
Cl

18
Ar

4

19
K

20
Ca

21
Sc

22
Ti

23
V

24
Cr

25
Mn

26
Fe

27
Co

28
Ni

29
Cu

30
Zn

31
Ga

32
Ge

33
As

34
Se

35
Br

36
Kr

5

37
Rb

38
Sr

39
Y

40
Zr

41
Nb

42
Mo

43
Tc

44
Ru

45
Rh

46
Pd

47
Ag

48
Cd

49
In

50
Sn

51
Sb

52
Te

53
I

54
Xe

6

55
Cs

56
Ba

+

72
Hf

73
Ta

74
W

75
Re

76
Os

77
Ir

78
Pt

79
Au

80
Hg

81
Tl

82
Pb

83
Bi

84
Po

85
At

86
Rn

7

87
Fr

88
Ra

*

104
Rf

105
Db

106
Sg

107
Bh

108
Hs

109
Mt

110
Ds


+ Lanthanide:

57
La

58
Ce

59
Pr

60
Nd

61
Pm

62
Sm

63
Eu

64
Gd

65
Tb

66
Dy

67
Ho

68
Er

69
Tm

70
Yb

71
Lu

* Actinide:

89
Ac

90
Th

91
Pa

92
U

93
Np

94
Pu

95
Am

96
Cm

97
Bk

98
Cf

99
Es

100
Fm

101
Md

102
No

103
Lr

Unless otherwise state, all the data is quoted at the standard conditions of temperature (298.15 K or 25C) and pressure (101.325 kPa or 760 mmHg).

Quote of the moment

If you built castles in the air, your work need not be lost; that is where thay should be. Now put the foundations under them.

Henry D. Thoreau


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