Ana səhifə

Periodic Table of the Elements


Yüklə 94.09 Kb.
tarix24.06.2016
ölçüsü94.09 Kb.

1







University of

St Andrews


Periodic Table of the Elements






















18

At. No.

1

H

Hydrogen


1.008

2



Relative Atomic Masses based on 12C = 12.0000


Values are quoted to 5 significant figures, or as many as are reliable. A value in brackets refers to the most stable isotope.

Symbol

Name


R.A.M.




13

14

15

16

17

2

He

Helium


4.0026




3

Li

Lithium


6.94

4

Be

Beryllium

9.0122
































5

B

Boron


10.81

6

C

Carbon


12.011

7

N

Nitrogen


14.007

8

O

Oxygen


15.999

9

F

Fluorine


18.998

10

Ne

Neon


20.180

11

Na

Sodium


22.990

12

Mg

Magnesium

24.305





3

4

5

6

7

8

9

10

11

12

13

Al

Aluminium

26.982


14

Si

Silicon


28.085

15

P

Phosphorus

30.974


16

S

Sulfur


32.06

17

Cl

Chlorine


35.45

18

Ar

Argon


39.948

19

K

Potassium

39.098


20

Ca

Calcium


40.078




21

Sc

Scandium


44.956

22

Ti

Titanium


47.867

23

V

Vanadium


50.942

24

Cr

Chromium


51.996

25

Mn

Manganese

54.938


26

Fe

Iron


55.845

27

Co

Cobalt


58.933

28

Ni

Nickel


58.693

29

Cu

Copper


63.546

30

Zn

Zinc


65.38

31

Ga

Gallium


69.723

32

Ge

Germanium

72.63


33

As

Arsenic


74.922

34

Se

Selenium


78.96

35

Br

Bromine


79.904

36

Kr

Krypton


83.798

37

Rb

Rubidium


85.468

38

Sr

Strontium

87.62





39

Y

Yttrium


88.906

40

Zr

Zirconium

91.224


41

Nb

Niobium


92.906

42

Mo

Molybdenum

95.96


43

Tc

Technetium

(98)


44

Ru

Ruthenium

101.07


45

Rh

Rhodium


102.91

46

Pd

Palladium

106.42


47

Ag

Silver


107.87

48

Cd

Cadmium


112.41

49

In

Indium


114.82

50

Sn

Tin


118.71

51

Sb

Antimony


121.76

52

Te

Tellurium

127.60


53

I

Iodine


126.90

54

Xe

Xenon


131.29

55

Cs

Caesium


132.91

56

Ba

Barium


137.33

57-71
see

Lanthanides



72

Hf

Hafnium


178.49

73

Ta

Tantalum


180.95

74

W

Tungsten


183.84

75

Re

Rhenium


186.21

76

Os

Osmium


190.23

77

Ir

Iridium


192.22

78

Pt

Platinum


195.08

79

Au

Gold


196.97

80

Hg

Mercury


200.59

81

Tl

Thallium


204.38

82

Pb

Lead


207.2

83

Bi

Bismuth


208.98

84

Po

Polonium


(209)

85

At

Astatine


(210)

86

Rn

Radon


(222)

87

Fr

Francium


(223)

88

Ra

Radium


(226)

89-103
see

Actinides



104

Rf

Rutherfordium

(265)


105

Db

Dubnium


(268)

106

Sg

Seaborgium

(271)


107

Bh

Bohrium


(270)

108

Hs

Hassium


(277)

109

Mt

Meitnerium

(276)


110

Ds

Darmstadtium

(281)


111

Rg

Roentgenium

(280)


112

Cn

Copernicium

(285)


113

Uut

Ununtrium

(284)


114

Fl

Flerovium

(289)


115

Uup

Ununpentium

(288)


116

Lv

Livermorium

(293)


117

Uus

Unnilseptium

(294)


118

Uuo

Ununoctium

(294)








Lanthanides

57

La

Lanthanum

138.91


58

Ce

Cerium


140.12

59

Pr

Praseodymium

140.91


60

Nd

Neodymium

144.24


61

Pm

Promethium

(145)


62

Sm

Samarium


150.36

63

Eu

Europium


151.96

64

Gd

Gadolinium

157.25


65

Tb

Terbium


158.93

66

Dy

Dysprosium

162.50


67

Ho

Holmium


164.93

68

Er

Erbium


167.26

69

Tm

Thulium


168.93

70

Yb

Ytterbium

173.05


71

Lu

Lutetium


174.97




Actinides

89

Ac

Actinium


(227)

90

Th

Thorium


232.04

91

Pa

Protactinium

231.04


92

U

Uranium


238.03

93

Np

Neptunium

(237)


94

Pu

Plutonium

(244)


95

Am

Americium

(243)


96

Cm

Curium


(247)

97

Bk

Berkelium

(247)


98

Cf

Californium

(251)


99

Es

Einsteinium

(252)


100

Fm

Fermium


(257)

101

Md

Mendelevium

(258)


102

No

Nobelium


(259)

103

Lr

Lawrencium



(262)


Verilənlər bazası müəlliflik hüququ ilə müdafiə olunur ©atelim.com 2016
rəhbərliyinə müraciət