1
H
18
PERIODIC TABLE OF THE ELEMENTS
1
2
He
2
13
14
15
16
17
4
5
6
7
8
9
4.00
10
Li
Be
B
C
N
O
F
Ne
6.94
11
9.01
12
10.81
13
12.01
14
14.01
15
16.00
16
19.00
17
20.18
18
Na
Mg
22.99
19
24.30
20
K
39.10
37
1.008
3
3
4
5
6
7
8
9
10
11
12
Al
Si
P
S
Cl
Ar
26.98
28.09
30.97
32.06
35.45
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
39.95
36
Ca
Sc
Ti
V
Cr
Mn
Fe
Co
Ni
Cu
Zn
Ga
Ge
As
Se
Br
Kr
40.08
38
44.96
39
47.87
40
50.94
41
52.00
42
54.94
43
55.85
44
58.93
45
58.69
46
63.55
47
65.38
48
69.72
49
72.63
50
74.92
51
78.97
52
79.90
53
83.80
54
Tc
Ru
Rh
Pd
Ag
Cd
In
Sn
Sb
Te
I
Xe
Rb
Sr
Y
Zr
Nb
Mo
85.47
55
87.62
56
88.91
91.22
72
92.91
73
95.95
74
75
Cs
Ba
57-71
Hf
Ta
W
Re
*
132.91 137.33
87
88
Fr
Ra
89-103
101.07 102.91 106.42 107.87 112.41 114.82 118.71 121.76 127.60 126.90 131.29
76
77
78
79
80
81
82
83
84
85
86
Os
178.49 180.95 183.84 186.21 190.23
105
106
107
108
104
Ir
Pt
Au
Hg
Tl
192.22 195.08 196.97 200.59 204.38
109
110
111
112
113
Pb
Bi
Po
At
Rn
207.2
114
208.98
115
116
117
118
Rf
Db
Sg
Bh
Hs
Mt
Ds
Rg
Cn
Nh
Fl
Mc
Lv
Ts
Og
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
La
Ce
Pr
Nd
Pm
Sm
Eu
Gd
Tb
Dy
Ho
Er
Tm
Yb
Lu
†
*Lanthanoids
138.91 140.12 140.91 144.24
89
90
91
92
†Actinoids
Ac
Th
Pa
U
93
Np
150.36 151.97 157.25 158.93 162.50
94
95
96
97
98
Pu
Am
Cm
Bk
Cf
164.93 167.26 168.93 173.05 174.97
99
100
101
102
103
Es
Fm
Md
No
Lr
232.04 231.04 238.03
AP Chemistry Periodic Table of the Elements
1 of 1
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