4
21
S
S
23
S
24
S
25
S
26
S
27
S
S
Al
13
S
Radium
226
Francium
223
88
Ra
S
Fr
87
S
S
104
Rf
X
74
S
Th
Thorium
232.04
Ac
S
Actinium
227
90
X
Tc
43
X
S
75
S
X
Nd
60
S
Bohrium
272
Bh
107
Rhenium
186.21
Re
S
S
X
X
Pm
61
Hassium
270
Hs
108
Osmium
190.23
Os
76
Ruthenium
101.07
Ru
44
Iron
55.85
Fe
U
S
Uranium
238.03
92
Pa
S
Protactinium
231.04
91
X
Neptunium
237
Np
93
Praseodymium Neodymium Promethium
144.24
140.91
145
Pr
59
Seaborgium
271
106
58
S
Tungsten
183.84
W
Sg
Dubnium
268
S
Mn
Manganese
54.94
M olybdenum Technetium
95.96
98
Mo
42
105 X
Ce
S
Cr
Chromium
52.00
Db
Cerium
140.12
89
S
Tant alum
180.95
La
S
73
Ta
Lanthanum
138.91
57
Lawrencium Rutherfordium
262
267
Lr
103
Hafnium
178.49
Lut inium
174.97
Barium
137.34
S
Cesium
132.91
72
Hf
Lu
S
71
S
Ba
56
S
Cs
55
Nb
S
Niobium
92.91
41
Zr
S
Zir conium
91.22
40
Y
S
Yttrium
88.91
39
Sr
S
V
Vanadium
50.94
Strontium
87.62
38
Ti
Titanium
47.87
Rb
S
Sc
Scandium
44.96
Rubidium
85.47
37
Ca
Calcium
40.08
20
K
S
Potassium
39.10
19
Co
S
S
110 X
Ds
S
S
S
Rg
111 X
Gold
196.97
Au
79
Silver
107.87
Ag
47
Copper
63.55
Cu
29
S
X
Plutonium
244
Pu
94
Samarium
150.36
Sm
62
S
X
Americium
243
Am
95
Europium
151.96
Eu
63
S
X
Curium
247
Cm
96
Gadolinium
157.25
Gd
64
Meitnerium Darmstadtium Roentgenium
276
281
280
Mt
109 X
Platinum
195.08
S
Iridium
192.22
78
Palladium
106.42
Pd
46
Pt
S
Ni
Nickel
58.69
S
Ir
77
Rhodium
102.91
Rh
45
Cobalt
58.93
28
S
L
S
X
Berkelium
247
Bk
97
Terbium
158.93
Tb
65
—
112
Mer cury
200.59
Hg
80
Cadmium
112.41
Cd
48
Zinc
65.38
Zn
S
S
S
X
Californium
251
Cf
98
Dysprosium
162.50
Dy
66
—
113
Thallium
204.38
Tl
81
Indium
114.82
In
49
Gallium
6 9. 72
Ga
31
S
S
B
Boron
1 0. 81
S
S
Actinide series
Lanthanide series
30
5
Aluminum
2 6. 98
22
Mass number
Noble gases
Nonmetals
Transition Metals
Metals
3
Mg
S
Solid
Liquid
Gas
Not found in nature
Magnesium
24.31
12
X
G
L
S
Na
S
U
Symbol
Uranium
238.03
92
Atomic number
State:
Sodium
22.99
11
Be
Berylium
9.01
Li
S
S
Lithium
6.94
3
2
1
6
4
7
5
8
6
9
7
C
S
S
S
S
S
X
Einsteinium
252
Es
99
Holmium
164.93
Ho
67
—
114
Lead
207. 2
Pb
82
Tin
118.71
Sn
50
Germanium
72.64
Ge
32
Silicon
28. 09
Si
14
Carbon
12. 01
S
N
S
S
S
S
S
X
Fermium
257
Fm
100
Erbium
167.26
Er
68
—
115
Bismuth
208.98
Bi
83
Antimony
121.76
Sb
51
Arsenic
74. 92
As
33
Phosphor us
30. 97
P
15
Nitrogen
14. 01
G
O
S
S
S
S
S
F
G
L
S
S
S
No
102
X
Ytterbium
173.05
Yb
70
Astatine
210
At
85
Iodine
126.90
I
53
Bromine
79. 90
Br
35
Chlorine
35. 45
Cl
17
Fluorine
19. 00
G
M endelevium Nobilium
258
259
Md
101 X
Thulium
168.93
Tm
69
—
116
Polonium
209
Po
84
Tellurium
127. 60
Te
52
Selenium
78. 96
Se
34
Sulfur
32.07
S
16
Oxygen
16. 00
G
G
G
G
—
118
R adon
222
Rn
86
Xenon
131.29
Xe
54
G
G
Krypton
83. 80
Kr
36
Argon
39.95
Ar
18
Neon
20. 18
Ne
10
Helium
4. 00
He
G
2
8
Atomic masses are 2005 IUPAC values up to two decimal placs.
H
G
Hydrogen
1.01
1
PERIODIC TABLE OF THE ELEMENTS