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Table 654. Conversion Factors for Units of Molecular Energy

Table 654. Conversion Factors for Units of Molecular Energy

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TABLE 655.4NTERNATIONAL ATOMIC WEIGHTS

At



Element



Symbol



Actinium ........ Ac

Aluminum ....... A1

Americium ....... Am

Antimony ........ Sb

Argon ........... A

Arsenic .......... As

Astatine ......... At

Barium .......... Ba

Berkelium ....... Br

Beryllium ........ Be

Bismuth ......... Bi

Boron ........... B

Bromine ......... Br

Cadmium ........ Cd

Calcium ......... Ca

Cf

Californium

Carbon .......... C

Cerium .......... Ce

Cesium .......... Cs

Chlorine ......... C1

Chromium ....... Cr

Cobalt ........... Co

Copper .......... Cu

Curium ........... Cm

Dysprosium

Dy

Erbium .......... E r

Europium ........ Eu

Fluorine ......... F

Francium ........ F r

Gadolinium

Gd

Gallium .......... Ga

Germanium ...... Ge

Gold

Au

Hafnium

Hf

Helium .......... H e

Ho

Holmium

Hydrogen ........ H

Indium .......... In

Iodine ........... I

Iridium .......... Ir

Iron ............. Fe

Krypton ......... Kr

Lanthanum ...... La

Lead ............ Pb

Lithium ......... Li

Lutetium ........ Lu

Magnesium ...... Mg

Manganese ...... Mn

Mercury ......... H g



.....



......



......



............

........

........



No

89

13

95

51

18

33

85

56

97

4

83

5

35

48

20

98

6

58

55

17

24



27



29

%

66

68

63

9

87

64

31

32

79

72

2

67

1

49

53

77

26

36

57

82

3

71

12

25

80



Atomic

weight



..



227

26.98

[2431

121.76

39.944

74.91

[2101

137.36

U451

9.013

209.00

10.82

79.916

112.41

40.08

12463

12.010

140.13

132.91

35.457

52.01

58.94

63.54

r2433

162.46

167.2

152.0

19.00

12231

156.9

69.72

72.60

197.2

178.6

4.003

164.94

1.0080

114.76

126.91

193.1

55.85

83.80

138.92

207.21

6.940

174.99

24.32

54.93

200.61



.



Element



Symbol



Molybdenum ..... Mo

Neodymium ...... Nd

Neon ............ Ne

Neptunium ...... NP

Nickel ........... Ni

Niobium ......... Nb

Nitrogen ........ N

Osmium ......... 0 s

Oxygen ......... 0

Palladium ....... Pd

Phosphorus ...... P

Platinum ........ Pt

Plutonium ....... P u

Polonium ........ P o

Potassium ....... K

Praseodymium ... Pr

Promethium ..... Pm

Protactinium ..... P a

Radium ......... R a

Radon ........... Rn

Rhenium ......... Re

Rhodium ........ Rh

Rubidium ........ Rb

Ruthenium ....... Ru

Samarium ....... Sm

Scandium . . . . . . . . Sc

Selenium ........ Se

Silicon .......... Si

Silver ...........

Sodium ..........

Strontium ....... Sr

Sulfur ........... S

Tantalum ........ T a

Technetium ...... T c

Tellurium ........ T e

Terbium ......... T b

Thallium ........ TI

Thorium ......... T h

Tliulium ......... Tm

Tin ............. Sn

Titanium ........ T i

Tungsten ........ W

Uranium ........ U

Vanadium ....... V

Xenon ........... Xe

Ytterbium ....... Yb

Yttrium ......... Y

Zinc ............. Zn

Zirconium ....... Zr



AN",



619

At



Atomic

weight



42

60

10

93

28

41

7

76

8

46

15

78

94

84

19

59

61

91

88

86

75

45

37

44

62

21

34

14

47

11

38

16

73

43

52

65

81

90

69

50

22

74

92

23



95.95

144.27

20.183

[2371

58.69

92.91

14.008

190.2

16

105.7

30.975

195.23

12421

210

39.100

140.92

[1451

231

226.05



No



m



186.31

102.91

85.48

101.7

150.43

44.%

78.96

28.06

107.880

22.997

87.63

32.066 t

180.88

[991

127.61

159.2

201.39

232.12

169.4

118.70

47.90

183.92

238.07

50.95

131.3

173 0 1

88.92

65.38

91.22



%



39

30

40



Y W i c h e r s Edward Journ. Amer . Chem Sac vol . 74. p . 2447 1952 .

A value &en in brackets denotes the mass ';umber of the isdtope of longest known half life

t Because of natural variations in the relative abundance of the isotopes of sulfur, the atomic weight of this

element has a range of k.003.



SMlTHSONlAN PHYSICAL TABLES



.



620

1 Hydrogen

2 Helium

3 Lithium

4 Beryllium

5 Boron

6 Carbon

7 Nitrogen

8 Oxygen

9 Fluorine

10 Neon

11 Sodium

12 Magnesium

13 Aluminum

14 Silicon

15 Phosphorus

16 Sulfur

17 Chlorine

18 Argon

19 Potassium

20 Calcium

21 Scandium

22 Titanium

23 Vanadium

24 Chromium

25 Manganese

26 Iron

27 Cobalt

28 Nickel

29 Copper

30 Zinc

31 Gallium

32 Germanium

33 Arsenic



TABLE 6MI.-ATOMIC



H



34 Selenium

35 Bromine

36 Krypton

37 Rubidium

38 Strontium

39 Yttrium

40 Zirconium

41 Niobium

42 Molybdenum

43 Technetium

44 Ruthenium

45 Rhodium

46 Palladium

47 Silver

48 Cadmium

49 Indium

50 Tin

51 Antimonv

52 Tellurium

53 Iodine

54 Xenon

55 Cesium

56 Barium

57 Lanthanum

58 Cerium

59 Praesodymium

60 Neodymium

61 Promethium

62 Samarium

63 Europium

64 Gadolinium

65 Terbium

66 Dysprosium



He

Li

Be



B



C

N



0

F



Ne

Na



%Si



P

S

C1

A

K

Ca

sc

Ti

V

Cr

Mn

Fe

co

Ni

cu

Zn

Ga

Ge

As



NUMBERS



Se

Br

Kr

Rb

Sr



Y



Zr

Nb

Mo

Tc

Ru

Rh

Pd

Ag

Cd

In

Sn

Sb

Te



I



Xe

cs

Ba

La

Ce

Pr

Nd

Pm

Sm

Eu

Gd

Tb

DY



67 Holmium

68 Erbium

69 Thulium

70 Ytterbium

71 Lutetium

72 Hafnium

73 Tantalum

74 Tungsten

75 Rhenium

76 Osmium

77 Iridium

78 Platinum

79 Gold

80 Mercury

81 Thallium

82 Lead

83 Bismuth

84 Polonium

85 Astatine

86 Radon

87 Francium

88 Radium

89 Actinium

90 Thorium

91 Protactinium

92 Uranium

93 Neptunium

94 Plutonium

95 Americium

96 Curium

97 Berkelium

98 Californium



Ho

Er

Tm

Yb



Lu

Hf

Ta



W



Re



0s

Ir

Pt

Au

Hg

TI

Pb

Bi

Po

At

Rn

Fr

Ra

Ac

Th

Pa

U

NP

Pu

Am

Cm

Bk

Cf



Given below by atomic numbers are some foreign or obsolete names for certain of the

elements.

4 Glucinium, GI

11 Natrium

13 Aluminium

19 Kalium

26 Ferrum



41

43

47

50

51



Columbium, Cb

Masurium, Ma

Argentum

Stannum

Stibium



SMITHSONIAN PHYSICAL TABLES



61

71

72

75

79



Illinium, I1

Cassiopeium

Celtium

Bohemium

Aurum



80

82

85

86

87



Hydragyrum

Plumbum

Alabamine, Ab

Emanation, niton

Virginium, Vi



TABLE 657.-PERIODIC



z

*z



I1



I



SYSTEM



IV



111



OF T H E ELEMENTSm



V



VI



VII



VIII

I



~



I

V



3



I



5



-I



lm

n



I1



3 Li

6.940



I11



11 Na

22.997



12 Mg

24.32



IV



19K

39.100



20

Ca

40.08



4 Be

9.013



29 Cu

63.54



V



f



37Rb

85.48



30 Zn

65.38



a



\



A



b

2 He

4.003



a



~



87Fr

223



7N

14.008



80

16



9 F

19.00



10 Ne

20.183



13 A1

26.98



14 Si

28.06



15 P

30.975



16 S

32.066



17 C1

35.457



18 A

39.944



31 Ga

69.72



22

Ti

47.90



32 Ge

72.60



40 Zr

91.22

49 I n

114.76



80 H g

200.61



57 La

138.92

58 to 71

Rare earths

81 TI

204.39



56 Ba

137.36

79 Au

197.2



6C

12.010



48 Cd

112.41



VI

55 c s

132.91



21

sc

44.96



5B

10.82



39 Y

88.92



38 Sr

87.63

47 Ag

107.880



VII



b



1H

1.0080



0



?-



~



V

23

50.95



33 A s

74.91



41 Nb

92.91

51 Sb

121.61



50 S n

118.70



82 Pb

207.21



42 Mo

95.95



34 S e

78.96



52 T e

127.61



74 w

183.92



73 Ta

180.88



72 Hf

178.6



24 C r

52.01



83 Bi

209.00



25 Mn

54.93

43 T c

[991



26Fe

55.85



27Co

58.94



28Ni

58.69



44Ru

101.7



45Rh

102.91



46Pd

106.7



35 Br

79.916



54 Xe

131.3



53 I

126.91

760s

190.2



75 Re

186.31

84 P o

210



85 At

12101



68Er

167.2



6 9 T m 70Yb

169.4

173.04



ax Meggers, W. P., Science, vol. 105, p. 514, 1947; G. T. Seaborg, private communication.



Rare earths:

57La

58Ce

138.92 140.13



t Actinide



59 P r

140.92



60 Nd

144.27



rare earths:

90Th

91 Pa

232.12

231



92U

238.17



61 P m 6 2 S m

11471

150.43

93 Np



94Pu



63Eu

152.0

95 Am



64Gd

156.9

96Cm



I%.?

97Bk



67Ho

I%.?

164.94

;

98Cf



771r

193.1



78Pt

195.23

86 Rn

222



89 Ac

227

90-103

Actinide rare

earths t



88 Ra

226.05



36 Kr

83.80



71 Lu

174.99



622

T A B L E 658.-ELECTRON



K



CONFIGURATIONS O F T H E ELEMENTS,

NORMAL STATES



*



L



M



N



d



1H

2 He

3 Li

4 Be

SB

6 C

7 N

8 0

9 F

10 Ne

11 Na

12 Mg

13 A1

14 Si

15 P

16 S

17 C1

18 A

19 K

20 Ca

21 s c

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

37 Rb

38 S r

39 Y

40 Zr

41 Nb

42 Mo

43 Tc

44 Ru

45 Rh

46 Pd



Is



2s



1

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2



2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2



2P



3s



3d'



3P



A-



45



4p



1

2

2

2

2

1

2

2

2

2

1

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2



1

2

3

4

5

6

6

6

6

6

6

6

6

6

6

6



4d



0

-



55



1



1

2

3

4



5



6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6



1

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2



1

2

3

4

5

6

6

6

6

6

6

6

6



6



6

6

6

6

6

6

6

6

6

6

6

6

6

6

6



6

6



6

6

6



1

2

3



5

5

6



7

8

10

10

10

10

10

10

10

10



10

10

10

10

10

10

10

10

10

10



See column 3, Table 623. G. T. Seaborg, private communication.



(continued)



SMITHSONIAN PHYSICAL TABLES



1

2

4

5

5

7

8

10



1

2

2

2

1

1



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