The periodic table
Atomic number
Metal
Semimetal
Nonmetal
Symbol
Atomic weight
87
223.0
Fr
7
88
226.0
Ra
103
262.1
Lr
104
261.1
Rf
105
262.1
Db
106
263.1
Sg
107
264.1
Bh
108
265.1
Hs
109
268
Mt
110
269
Uun
111
272
Uuu
112
277
Uub
113
Uut
114
289
Uuq
115
Uup
116
289
Uuh
117
Uus
118
293
Uuo
55
132.9
Cs
6
7
6
56
137.3
Ba
71
175.0
Lu
72
178.5
Hf
73
180.9
Ta
74
183.8
W
75
186.2
Re
76
190.2
Os
77
192.2
Ir
78
195.1
Pt
79
197.0
Au
80
200.6
Hg
81
204.4
Tl
82
207.2
Pb
83
209.0
Bi
84
209.0
Po
89
227.0
Ac
90
232.0
Th
91
231.0
Pa
92
238.0
U
93
237.0
Np
94
244.1
Pu
95
243.1
Am
96
247.1
Cm
97
247.1
Bk
98
251.1
Cf
99
252.0
Es
100
257.1
Fm
101
258.1
Md
102
259.1
No
57
138.9
La
58
140.1
Ce
59
140.9
Pr
60
144.2
Nd
61
146.9
Pm
62
150.4
Sm
63
152.0
Eu
64
157.3
Gd
65
158.9
Tb
66
162.5
Dy
67
164.9
Ho
68
167.3
Er
69
168.9
Tm
70
173.0
Yb
85
210.0
At
86
222.0
Rn
37
85.47
Rb
5
38
87.62
Sr
39
88.91
Y
40
91.22
Zr
41
92.91
Nb
42
95.94
Mo
43
98.91
Tc
44
101.1
Ru
45
102.9
Rh
46
106.4
Pd
47
107.9
Ag
48
112.4
Cd
49
114.8
In
50
118.7
Sn
51
121.8
Sb
52
127.6
Te
53
126.9
I
54
131.3
Xe
19
39.10
K
4
20
40.08
Ca
21
44.96
Sc
22
47.88
Ti
23
50.94
V
24
52.00
Cr
25
54.94
Mn
26
55.85
Fe
27
58.93
Co
28
58.69
Ni
29
63.55
Cu
30
65.39
Zn
31
69.72
Ga
32
72.61
Ge
33
74.92
As
34
78.96
Se
35
79.90
Br
36
83.80
Kr
11
22.99
Na
3
12
24.31
Mg
13
26.98
Al
14
28.09
Si
15
30.97
P
16
32.07
S
17
35.45
Cl
18
39.95
Ar
3
6.941
Li
2
4
9.012
Be
5
10.81
B
6
12.01
C
7
14.01
N
8
16.00
O
9
19.00
F
10
20.18
Ne
1
1.008
H
6
12.01
C
1
1
18
2
3
4
5
6
7
8
9
1 0
1 1
1 2
13
14
15
16
17
2
4.003
He
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