THE PERIODIC TABLE OF THE ELEMENTS          
                               
1
      key   Alkali Metals                
18
1
H
Hydrogen
1.00794
      atomic number
symbol
name
standard atomic weight
  Alkaline Earth Metals                 2
He
Helium
4.002602
Transition Metals  
2
Other Metals  
13
14
15
16
17
3
Li
Lithium
6.941
4
Be
Beryllium
9.012182
          Nonmetals      
5
B
Boron
10.811
6
C
Carbon
12.0107
7
N
Nitrogen
14.00674
8
O
Oxygen
15.9994
9
F
Fluorine
18.9984032
10
Ne
Neon
20.1797
Inert Gases  
 
11
Na
Sodium
22.989770
12
Mg
Magnesium
24.3050
     

 

 

            13
Al
Aluminium
24.3050
14
Si
Silicon
24.3050
15
P
Phosphorus
24.3050
16
S
Sulfur
24.3050
17
Cl
Chlorine
20.1797
18
Ar
Argon
20.1797
3
4
5
6
7
8
9
10
11
12
19
K
Potassium
39.0983
20
Ca
Calcium
40.078
21
Sc
Scandium
44.955910
22
Ti
Titanium
47.867
23
V
Vanadium
50.9415
24
Cr
Chromium
51.9961
25
Mn
Maganese
54.938049
26
Fe
Iron
55.8457
27
Co
Cobalt
58.933200
28
Ni
Nickel
58.6934
29
Cu
Copper
63.546
30
Zn
Zinc
65.39
31
Ga
Gallium
69.723
32
Ge
Germanium
72.61
33
As
Arsenic
74.92160
34
Se
Selenium
78.96
35
Br
Bromine
79.904
36
Kr
Krypton
83.80
37
Rb
Rubidium
85.4678
38
Sr
Strontium
87.62
39
Y
Yttrium
88.90585
40
Zr
Zirconium
91.224
41
Nb
Niobium
92.90638
42
Mo
Molybdenum
95.94
43
Tc
Technetium
(98)
44
Ru
Ruthenium
101.07
45
Rh
Rhodium
102.90550
46
Pd
Palladium
106.42
47
Ag
Silver
107.8682
48
Cd
Cadmium
112.411
49
In
Indium
114.818
50
Sn
Tin
118.710
51
Sb
Antimony
121.760
52
Te
Tellurium
127.60
53
I
Iodine
126.90447
54
Xe
Xenon
131.29
55
Cs
Cesium
132.90545
56
Ba
Barium
137.327
57-71 lanthanolds 72
Hf
Hafnium
178.49
73
Ta
Tantalum
180.9479
74
W
Tungsten
183.84
75
Re
Rhenium
186.207
76
Os
Osmium
190.23
77
Ir
Iridium
192.217
78
Pt
Platinum
195.078
79
Au
Gold
1196.96655
80
Hg
Mercury
200.59
81
Tl
Thallium
204.3833
82
Pb
Lead
207.2
83
Bi
Bismuth
208.98038
84
Po
Polonium
(209)
85
At
Astatine
(210)
86
Rn
Radon
(222)
87
Fr
Francium
(223)
88
Ra
Radium
(226)
89-103
actinolds
104
Rf
Rutherfordium
(261)
105
Db
Dubnium
(262)
106
Sg
Seaborgium
(263)
107
Bh
Bohrium
(262)
108
Hs
Hassium
(265)
109
Mt
Meitnerium
(266)
110
Ds
darmstadtium
(271)
111
Rg
roentgenium
(272)
       
                     
    57
La
Lanthanum
138.9055
58
Ce
Cerium
138.9055
59
Pr
Praseodymium
138.9055
60
Nd
Neodymium
138.9055
61
Pm
Promethium
138.9055
62
Sm
Samarium
138.9055
63
Eu
Europium
138.9055
64
Gd
Gadolinium
138.9055
65
Tb
Terbium
138.9055
66
Dy
Dysprosium
138.9055
67
Ho
Holmium
138.9055
68
Er
Erbium
138.9055
69
Tm
Thulium
138.9055
70
Yb
Ytterbium
138.9055
71
Lu
Lutetium
138.9055
 
    89
Ac
Actinum
(227)
90
Th
Thorium
232.0381
91
Pa
Proactinium
231.03588
92
U
Uranium
238.0289
93
Np
Neptunium
(237)
94
Pu
Plutonium
(244)
95
Am
Americium
(243)
96
Cu
Curium
(247)
97
Bk
Berkelium
(247)
98
Cf
Californium
(251)
99
Es
Einsteinium
(252)
100
Fm
Fermium
(257)
101
Md
Mendelevium
(258)
102
No
Nobelium
(259)
103
Lr
Lawrencium
(262)