102 / 123
(293)
Livermorium
*
(289)
Moscovium
*
(289)
Flerovium
*
(286)
Nihonium
*
(252)
Einsteinium
*
164.930
Holmium
(257)
Fermium
*
167.259
Erbium
(258)
Mendelevium
*
168.934
Thulium
(259)
Nobelium
*
173.04
Ytterbium
(262)
Lawrencium
*
174.967
Lutetium
(285)
Copernicium
*
(281)
Roentgenium
*
(281)
Darmstadtium
*
(278)
Meitnerium
*
(277)
Hassium
*
(98)
Technetium
95.95
Molybdenum
92.906
Niobium
91.224
Zirconium
88.906
Yttrium
87.62
Strontium
85.468
Rubidium
39.098
Potassium
40.078
Calcium
22.990
Sodium
24.305
Magnesium
6.941
Lithium
1.008
Hydrogen
1.008
Hydrogen
1
H
9.012
Beryllium
44.956
Scandium
47.867
Titanium
50.942
Vanadium
51.996
Chromium
54.938
Manganese
55.847
Iron
58.933
Cobalt
58.693
Nickel
63.546
Copper
65.39
Zinc
69.723
Gallium
26.982
Aluminum
13
28.086
Silicon
14
30.974
Phosphorus
15
32.066
Sulfur
16
35.453
Chlorine
17
10.811
Boron
12.011
Carbon
14.007
Nitrogen
15.999
Oxygen
18.998
Fluorine
20.180
Neon
4.003
Helium
39.948
Argon
18
72.61
Germanium
74.922
Arsenic
78.971
Selenium
79.904
Bromine
83.80
Krypton
(270)
Bohrium
*
(269)
Seaborgium
*
(270)
Dubnium
*
(227)
Actinium
140.115
Cerium
232.038
Thorium
140.908
Praseodymium
231.036
Protactinium
144.242
Neodymium
238.029
Uranium
(145)
Promethium
(237)
Neptunium
150.36
Samarium
(244)
Plutonium
151.965
Europium
(243)
Americium
157.25
Gadolinium
(247)
Curium
158.925
Terbium
(247)
Berkelium
162.50
Dysprosium
(251)
Californium
138.905
Lanthanum
178.49
Hafnium
(226)
Radium
(223)
Francium
132.905
Cesium
180.948
Tantalum
183.84
Tungsten
186.207
Rhenium
190.23
Osmium
192.217
Iridium
195.08
Platinum
196.967
Gold
200.59
Mercury
204.383
Thallium
207.2
Lead
208.980
Bismuth
208.982
Polonium
209.987
Astatine
222.018
Radon
131.290
Xenon
127.60
Tellurium
121.757
Antimony
118.710
Tin
112.411
Cadmium
107.868
Silver
106.42
Palladium
102.906
Rhodium
101.07
Ruthenium
137.327
Barium
(267)
Rutherfordium
*
(294)
Tennessine
*
(294)
Oganesson
*
114.82
Indium
126.904
Iodine
116
115
114
113
99
67
100
68
101
69
102
70
103
71
112
111
110
109
108
43
42
41
40
39
38
37
19
20
11
12
3
1
4
21
22
23
24
25
26
27
28
29
30
31
5
6
7
8
9
10
2
32
33
34
35
36
107
106
105
89
58
90
59
91
60
92
61
93
62
94
63
95
64
96
65
97
66
98
57
72
88
87
55
73
74
75
76
77
78
79
80
81
82
83
84
85
86
54
52
51
50
48
47
46
45
44
56
104
117
118
49
53
Y Sr
Rb
K Ca
Na Mg
Li
H
Be
Sc
Ac
La
Ra
Fr
Cs Ba
Fl
Nh
Cn
Rg
Ds
Mt
Hs
Tc
Mo
Nb
Zr
Ti
V Cr
Mn Fe Co Ni
Cu Zn Ga
Al
Si
B C N O F Ne
He
Ge
Bh
Sg
Db
Hf
Ta W Re Os
Pt
Au Hg Tl
Pb
Sn
Cd
Ag
Pd
Rh
Ru
r
Rf
n
Lv
Mc
P S Cl
Ar
As Se Br
Kr
Bi
Po At
Rn
Xe
Te
Sb
Ts Og
Es
Ho
Fm
Er
Md
Tm
No
Yb
Lr
Lu
Ce
Th
Pr
Pa
Nd
U
Pm
Np
Sm
Pu
Eu
Am
Gd
Cm
Tb
Bk
Dy
Cf
1
1
2
7
6
5
4
3
2
9
3
4
5
6
7
8
Synthetic
Metal
Metalloid
Nonmetal
10 11
12
13 14 15 16 17
18
Lanthanide series
Actinide series
*
Properties are largely predicted.
Atomic number
Symbol
Element
Atomic mass
The number in parentheses is the mass number of the longest-lived isotope
for that element.
Figure 4
Periodic Table of the Elements
142
Module 5 • The Periodic Table and Periodic Law