Periodic Table Of The Elements
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1Periodic Table of the Elements
1
1
2
H
H
He
4.002602
1.00794
1.00794
4
3
5
6
7
8
9
10
Li
Be
B
C
N
O
F
Ne
6.941
9.012182
10.811
12.0107
14.00674
15.9994
18.9984032
20.1797
11
12
13
14
15
16
17
18
Na Mg
Al
Si
P
S
Cl
Ar
28.0855
32.066
22.989770
24.3050
26.981538
30.973761
35.4527
39.948
19
20
21
23
24
25
26
29
30
31
33
34
35
22
27
28
32
36
Ca
Sc
Ti
V
Cr
Mn
Fe
Co
Ni
Cu
Zn
Ga
Ge
As
Br
Kr
K
Se
74.92160
40.078
55.845
72.61
78.96
83.80
39.0983
44.955910
47.867
50.9415
51.9961
58.933200
58.6934
63.546
65.39
69.723
79.904
54.938049
37
38
39
40
41
43
44
45
46
47
49
50
51
52
53
54
42
48
Rb
Sr
Y
Zr
Nb
Mo
Tc
Ru
Rh
Pd
Ag
Cd
In
Sn
Sb
Te
I
Xe
88.90585
(98)
101.07
118.710
127.60
131.29
85.4678
87.62
91.224
92.90638
95.94
102.90550
106.42
107.8682
112.411
114.818
121.760
126.90447
57
75
76
77
79
81
82
85
86
55
56
72
73
74
78
80
83
84
Cs
Ba
La
Hf
Ta
W
Re
Os
Ir
Pt
Au
Hg
Tl
Pb
Bi
Po
At
Rn
132.90545
137.327
138.9055
178.49
183.84
186.207
190.23
192.217
195.078
196.96655
200.59
204.3833
207.2
208.98038
(209)
(210)
(222)
180.9479
87
88
89
104
105
106
107
108
109
112
118
110
111
114
116
Fr
Ra
Ac
Rf
Db
Sg
Bh
Hs
Mt
(289)
(223)
(226)
(227)
(261)
(262)
(263)
(262)
(265)
(266)
(269)
(272)
(277)
(289)
(293)
(287)
58
59
60
61
62
63
64
65
66
67
68
69
70
71
Ce
Pr
Nd
Pm
Sm
Eu
Gd
Tb
Dy
Ho
Er
Tm
Yb
Lu
140.116
140.90765
144.24
(145)
150.36
151.964
157.25
158.92534
162.50
164.93032
167.26
168.93421
173.04
174.967
90
91
92
93
94
95
96
97
98
99
100
101
102
103
Th
Pa
U
Np
Es
No
Lr
Pu
Am
Cm
Bk
Cf
Fm
Md
232.0381
231.03588
(237)
(243)
(247)
(247)
(251)
(252)
(257)
(258)
(259)
(262)
238.0289
(244)
S.E. Van Bramer,
7/22/99
1995 IUPAC masses and Approved Names from
masses for 107-111 from C&EN, March 13, 1995, P 35
112 from
114 from C&EN July 19, 1999
116 and 118 from
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