SOLVING PROBLEMS:
A CHEMISTRY HANDBOOK
Appendix A
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
314 Chemistry: Matter and Change
Solving Problems: A Chemistry Handbook
PERIODIC TABLE OF THE ELEMENTS
Hydrogen
1
H
1.008
Lithium
3
Li
6.941
Sodium
11
Na
22.990
Potassium
19
K
39.098
Rubidium
37
Rb
85.468
Cesium
55
Cs
132.905
Francium
87
Fr
(223)
Radium
88
Ra
(226)
Barium
56
Ba
137.327
Strontium
38
Sr
87.62
Calcium
20
Ca
40.078
Magnesium
12
Mg
24.305
Beryllium
4
Be
9.012
1
1
2
2
3
4
5
6
7
9
3
4
5
6
7
8
Hydrogen
1
H
1.008
Element
Atomic number
Symbol
Atomic mass
State of
matter
Gas
Liquid
Solid
Synthetic
Yttrium
39
Y
88.906
Zirconium
40
Zr
91.224
Niobium
41
Nb
92.906
Molybdenum
42
Mo
95.94
Scandium
21
Sc
44.956
Titanium
22
Ti
47.867
Vanadium
23
V
50.942
Chromium
24
Cr
51.996
Technetium
43
Tc
(98)
Ruthenium
44
Ru
101.07
Manganese
25
Mn
54.938
Iron
26
Fe
55.847
Cobalt
27
Co
58.933
Rhodium
45
Rh
102.906
Actinium
89
Ac
(227)
Lanthanum
57
La
138.905
Hafnium
72
Hf
178.49
Tantalum
73
Ta
180.948
Dubnium
105
Db
(262)
Seaborgium
106
Sg
(266)
Hassium
108
Hs
(277)
Meitnerium
109
Mt
(268)
Bohrium
107
Bh
(264)
Tungsten
74
W
183.84
Rhenium
75
Re
186.207
Osmium
76
Os
190.23
Iridium
77
Ir
192.217
Rutherfordium
104
Rf
(261)
Lanthanide series
Actinide series
The number in parentheses is the mass number of the longest lived isotope
for that element.
Cerium
58
Ce
140.115
Thorium
90
Th
232.038
Uranium
92
U
238.029
Neptunium
93
Np
(237)
Plutonium
94
Pu
(244)
Americium
95
Am
(243)
Neodymium
60
Nd
144.242
Promethium
61
Pm
(145)
Samarium
62
Sm
150.36
Europium
63
Eu
151.965
Praseodymium
59
Pr
140.908
Protactinium
91
Pa
231.036
Table A-9