Periodic Table
Periodic Table of the Elements
I
1.
1
1
2
H
H
He
II
1.00794
3
2.
4.
5.
6.
Li
Be
9.012182
IV
V
VI
1.00794
4.002602
5
6
7
8
9
10
N
O
F
Ne
B
C
10.811
12.0107
13
14
15
Si
P
12
Na Mg
Al
22.989770 24.3050
26.981538
14.00674 15.9994
18.9984032 20.1797
16
28.0855 30.973761
17
18
S
Cl
Ar
32.066
35.4527
39.948
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
K
Ca
Sc
Ti
V
Cr
Mn
Fe
Co
Ni
Cu
Zn
Ga
Ge
As
Br
Kr
39.0983
40.078
44.955910
47.867
50.9415
55.845
58.933200
58.6934
63.546
65.39
69.723
72.61
74.92160
Se
78.96
79.904
83.80
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
Rb
Sr
Y
Zr
Nb
Mo
Tc
Ru
Rh
Pd
Ag
Cd
In
Sn
Sb
Te
I
Xe
85.4678
87.62
88.90585
91.224
92.90638
95.94
(98)
101.07
107.8682
112.411
114.818
118.710
121.760
127.60
56
57
72
73
74
75
76
102.90550
77
106.42
55
78
79
80
81
82
83
84
Cs
Ba
132.90545 137.327
7.
III
4
6.941
11
3.
VIII
VII
La
138.9055
51.9961 54.938049
126.90447 131.29
85
86
Hf
Ta
W
Re
Os
Ir
Pt
Au
Hg
Tl
Pb
Bi
Po
At
Rn
178.49
180.9479
183.84
186.207
190.23
192.217
195.078
196.96655
200.59
204.3833
207.2
208.98038
(209)
(210)
(222)
87
88
89
104
105
106
107
108
109
110
111
112
Fr
Ra
Ac
Rf
Db
Sg
Bh
Hs
Mt
Ds
Rg
Cn
(223)
(226)
(227)
(261)
(262)
(263)
(262)
(265)
(266)
(269)
(272)
(277)
58
59
Ce
Pr
140.116 140.90765
60
Nd
61
62
63
Pm Sm Eu
64
65
66
Tb
Dy
(145)
150.36
151.964
Gd
144.24
157.25
158.92534
162.50
94
95
96
97
98
90
91
92
93
Th
Pa
U
Np
232.0381 231.03588 238.0289
(237)
S.E. Van Bramer, 7/22/99
1995 IUPAC masses and Approved Names from http://www.chem.qmw.ac.uk/iupac/AtWt/ masses for 107-111 from C&EN, March 13, 1995, P 35
112 from http://www.gsi.de/z112e.html
114 from C&EN July 19, 1999
116 and 118 from
I
1.
1
1
2
H
H
He
II
1.00794
3
2.
4.
5.
6.
Li
Be
9.012182
IV
V
VI
1.00794
4.002602
5
6
7
8
9
10
N
O
F
Ne
B
C
10.811
12.0107
13
14
15
Si
P
12
Na Mg
Al
22.989770 24.3050
26.981538
14.00674 15.9994
18.9984032 20.1797
16
28.0855 30.973761
17
18
S
Cl
Ar
32.066
35.4527
39.948
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
K
Ca
Sc
Ti
V
Cr
Mn
Fe
Co
Ni
Cu
Zn
Ga
Ge
As
Br
Kr
39.0983
40.078
44.955910
47.867
50.9415
55.845
58.933200
58.6934
63.546
65.39
69.723
72.61
74.92160
Se
78.96
79.904
83.80
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
Rb
Sr
Y
Zr
Nb
Mo
Tc
Ru
Rh
Pd
Ag
Cd
In
Sn
Sb
Te
I
Xe
85.4678
87.62
88.90585
91.224
92.90638
95.94
(98)
101.07
107.8682
112.411
114.818
118.710
121.760
127.60
56
57
72
73
74
75
76
102.90550
77
106.42
55
78
79
80
81
82
83
84
Cs
Ba
132.90545 137.327
7.
III
4
6.941
11
3.
VIII
VII
La
138.9055
51.9961 54.938049
126.90447 131.29
85
86
Hf
Ta
W
Re
Os
Ir
Pt
Au
Hg
Tl
Pb
Bi
Po
At
Rn
178.49
180.9479
183.84
186.207
190.23
192.217
195.078
196.96655
200.59
204.3833
207.2
208.98038
(209)
(210)
(222)
87
88
89
104
105
106
107
108
109
110
111
112
Fr
Ra
Ac
Rf
Db
Sg
Bh
Hs
Mt
Ds
Rg
Cn
(223)
(226)
(227)
(261)
(262)
(263)
(262)
(265)
(266)
(269)
(272)
(277)
58
59
Ce
Pr
140.116 140.90765
60
Nd
61
62
63
Pm Sm Eu
64
65
66
Tb
Dy
(145)
150.36
151.964
Gd
144.24
157.25
158.92534
162.50
94
95
96
97
98
90
91
92
93
Th
Pa
U
Np
232.0381 231.03588 238.0289
(237)
S.E. Van Bramer, 7/22/99
1995 IUPAC masses and Approved Names from http://www.chem.qmw.ac.uk/iupac/AtWt/ masses for 107-111 from C&EN, March 13, 1995, P 35
112 from http://www.gsi.de/z112e.html
114 from C&EN July 19, 1999
116 and 118 from