Periodic Table of the Elements

PERIODIC TABLE OF THE ELEMENTS

1
H
1.0079

http://www.periodni.com/en/

New address! Please update your Bookmarks.

3	4	5	6	7	8	9	10	11	12

2
He
4.0026

3
Li
6.941

4
Be
9.0122

5
B
10.811

6
C
12.011

7
N
14.007

8
O
15.999

9
F
18.998

10
Ne
20.180

11
Na
22.990

12
Mg
24.305

13
Al
26.982

14
Si
28.086

15
P
30.974

16
S
32.066

17
Cl
35.453

18
Ar
39.948

19
K
39.098

20
Ca
40.078

21
Sc
44.956

22
Ti
47.867

23
V
50.942

24
Cr
51.996

25
Mn
54.938

26
Fe
55.845

27
Co
58.933

28
Ni
58.693

29
Cu
63.546

30
Zn
65.409

31
Ga
69.723

32
Ge
72.64

33
As
74.922

34
Se
78.96

35
Br
79.904

36
Kr
83.798

37
Rb
85.468

38
Sr
87.62

39
Y
88.906

40
Zr
91.224

41
Nb
92.906

42
Mo
95.94

43
Tc
(98)

44
Ru
101.07

45
Rh
102.91

46
Pd
106.42

47
Ag
107.87

48
Cd
112.41

49
In
114.82

50
Sn
118.71

51
Sb
121.76

52
Te
127.60

53
I
126.90

54
Xe
131.29

55
Cs
132.91

56
Ba
137.33

57 - 71

La-Lu

72
Hf
178.49

73
Ta
180.95

74
W
183.84

75
Re
186.21

76
Os
190.23

77
Ir
192.22

78
Pt
195.08

79
Au
196.97

80
Hg
200.59

81
Tl
204.38

82
Pb
207.2

83
Bi
208.98

84
Po
(209)

85
At
(210)

86
Rn
(222)

87
Fr
(223)

88
Ra
(226)

89 -103

Ac-Lr

104
Rf
(261)

105
Db
(262)

106
Sg
(266)

107
Bh
(264)

108
Hs
(277)

109
Mt
(268)

110
Ds
(281)

111
Rg
(272)

Lanthanide

57
La
138.91

58
Ce
140.12

59
Pr
140.91

60
Nd
144.24

61
Pm
(145)

62
Sm
150.36

63
Eu
151.96

64
Gd
157.25

65
Tb
158.93

66
Dy
162.50

67
Ho
164.93

68
Er
167.26

69
Tm
168.93

70
Yb
173.04

71
Lu
174.97

HOME

Actinide

89
Ac
(227)

90
Th
232.04

91
Pa
231.04

92
U
238.03

93
Np
(237)

94
Pu
(244)

95
Am
(243)

96
Cm
(247)

97
Bk
(247)

98
Cf
(251)

99
Es
(252)

100
Fm
(257)

101
Md
(258)

102
No
(259)

103
Lr
(262)

SOLID

LIQUID

GAS

100 °C

101 kPa

SYNTHETIC ELEMENT

Relative atomic mass is shown with five significant figures. For the precise value of the atomic mass you must click on an element symbol in periodic table. For elements have no stable nuclides, the value enclosed in brackets indicates the mass number of the longest-lived isotope of the element. However three such elements (Th, Pa and U) do have a characteristic terrestrial isotopic composition, and for these an atomic weight is tabulated. (Atomic Weights of the Elements 2005, Pure Appl. Chem., Vol. 78, No. 11 (2006) 2051-2066).

CONTENT:	New address! - http://www.periodni.com/en/ - Please update your Bookmarks.
Glossary of chemical terms	Glossary of chemical terms contain a brief definitions of selected terms of importance in chemistry and related fields of science. Individual chemical compounds are not included. It is composed of two parts: appendixes dictionary A \| B \| C \| D \| E \| F \| G \| H \| I \| J \| K \| L M \| N \| O \| P \| R \| S \| T \| U \| V \| X \| Z

css - Periodic Table of the Elements	Periodic table of the elements contains the basic data about the elements in five languages: English (Editors: Aditya Vardhan, Eni Generalic) French (Editor: Michel Ditria) Croatian (Editors: Eni Generalic, Marija Bralic, Slobodan Brinic) German (Editor: Marc Hens) Italian (Editor: editors wanted) The further information of each element can be found by periodic table alphabetical listing names alphabetical listing of symbols ASCII periodic table PSE.Menu is a small remote control for Periodic table of the elements. It opens in a separate window and the selected page is loaded in a parent window.

Printable periodic table	Periodic table of the elements is prepared for prints in Portable Document Format (PDF) in two versions black white version for laser printers colour version for colour printers 3D paper models of crystal systems (cubic, tetragonal, orthorhombic, hexagonal, rhombohedral, monoclinic and triclinic)

JavaScript programs	This JavaScript programs will work for both Netscape and MSIE users, so you need to get Netscape Navigator 2.0, Microsoft Internet Explorer 3.0 or later. Pages are best viewed with Microsoft Internet Explorer 4.0 or higher. Scientific calculator for chemists Chem.Calc is a fully-functioning JavaScript scientific calculator that contains fundamental physical constants and atomic weight of elements. The calculator contains a list with task history, storing all the recent inputs and results. Scientific calculator Sci.Calc is a fully-functioning JavaScript calculator that contain of practically any common and many advanced calculator functions (cosine, sine, tangent, power, square root, exponents, etc.). Molar mass calculator Molar mass calculator is an expression calculator for fast calculation of molecular weight of compounds. The program translates the texts with chemical element symbols or without them into a mathematical expression and calculates them.

Visual Basic programs	'Tools & Toys' contains some programmes for chemists (and non-chemist). You can download a programmes in two self-install copy: one with all the files needed and other without Visual Basic library. EniG. Chemistry Assistant 2.4 is an expression calculator for fast calculation of molecular weight of compounds by simple entry of chemical formula (the element symbols can be written in lowercase letters). The calculator also provides a list of common physical constants and performs various conversions between English and metric units. (Update: 2002/12/12) EniG. Periodic Table of the Elements 2.11 contains the basic data about the element in 7 languages (Croatian, English, French, German, Italian, Portuguese, and Spanish). It shows the change of physical condition with the change of temperature. The language, the speed of temperature changes or the exchange of elements can be adjusted by configuration file. The calculating module from the programme Chemistry Assistant has been integrated. (Update: 2003/03/28)

Links	Links for chemists Chemistry journals

Statistics and awards	Statistics and awards for Periodic table of the elements About project