_
_
THE ‘PERIODIC TABLE
_
.
"
'
a
a
a
b_ a
b
a
b
a
b
a
b
'
'
_
.
1'00_78
.
'
.
_
4.002
_
'
_
_
3..'
-
4
5.
"5
7
.8
.9
10
'
"
'
"
'
‘
.
=
2
El
Be
B
.
c
'N
0
81
Ne
.
.
..
"
;…
.=
_
6940
9.02
10.82
1201
14.008
16.0000
19.00 20.183
'
;
'
11
12
13
14
15
16
.
17
18
»
[
’
;3
Na
Mg'A1
31
,
P
s
01 'A
‘
22.997
24.32
26.97
28.06
81.02
82.06
85.457 99.944
_
'
-
_
19
21
22
23
24
25
_
25
27
28
_
.
Ï
K
Ca
Sc - Tl
V
Cr
Mn
'
Fe
Co
Ni
.
4
89.096
40.08
45.10
47.90
50.95
52.01
54.98
55.84
58.94
58.69
.
29
30
31
32
33
'
34
35
36
'
_
'Cu
Zn
Ga
Ge
As
Se
.
Br Kr
_
..
68.57
65.88
69.72
72.60
74.91
78.96
79.916
88.7
-
3738
39
_
40
41
42
43
44
45
46
'
'
_.
R;b
Sr
"Y'Zr
Gb
Mo
Ma
Ru
Rh _Pd
.
5 _ 85.48
87.68
88.92
91.22
92.91
96.0
_
.
'
101.7
102.91
106.7
47
48
49
'
50
51
52
53
54
.
-
Ag
__
Cd
In . Sn
Sb.
Te
I Xe
'
_
.
_
107.880
112.41
114.76
118.70
'121.76_127.61
126.92 161.8
'
'
.
55
56"
57—71
72
73
74
75
76
77
'
78
Cs
Ba
Hf
Ta
W
Re
”OS
114 Pt
’
132.91
187.86 '
RareEanhs 178.6
180.88184.0
186.31
191.5
199.1 — 195.23
'
.
-
79
80
81
_
8283
.
84
85
86
'
—
Au. 'Hg
Tl
Pb « Bi
Po
—_ Rn
.,
'
'
_
197.2
200.61
204.99
207.21
209.00
210
.
222
"
—._
*
87.
‘88
_
89
90
.
91
92
'
'
.
.
.
'.
—
Ra
AC
Th
Pa
U
_
_
—
.
226.05227
.
232.12
281
288.07
.
'
._
.
-
Rare
58
59
'
60
.
61
62
63
64
65
66.
67
68
69
70
71
_
Earhs
Ce
Pr
Nd
Il
Sm Eu Gd Tb Dy Ho Er Tm Yb Lu
'
_
»
_
'
_
'
140.18
150.43 152.0 156.9
159.2 162.40 168.5 167.64 169.4 173.04 175.0
._
_
Al 13 Aluminum
'
F
9 Fluorine
' _ Mo42
.Se 34 Selenium
'
"
‘
.
Sb 51 Autimony
Gd 64 Gadolinium
Nd 60 Neodymium
Si 14 Silico_
_
‘.A' 18 Argon
Ga 31 Gallium
Ne 10 Neon
Ag47 Silver
_
‘
_
_
As 33 Arsenic
Ge 32 -Germanium
_
Ni 28 Nickel.
Nan Sodium
'
.
'
_
—
=
ABB. 56 Barium
Au79 Gold
N
7
_
Nitrogen
_
Sr 88 Sti:ontium
.’
=
_'
Be
4 Beryilium
Hf 72 Hafnîum.
Os 76_ Osmium .
_
S _16 Sulfur
'
.
'
_.
_'
îBi 83 Bismuth
He 2 Helium
0
8
Oxygen
Ta 73 Tantalum
.
'
"
B' 5 Boron
Ho 67
_
Holmium
_1°_d 46 Palladium
Te 52 Tellurium
.
'
Br 35
Bromine_
H
1 Hydrogen
.
'P 16 'Phosphorus.
_
_Tb"65' Terbiüm.
.
‘
'
.Cd 48 Cadmium
Il 61 Illihium
Pt 78 Platinum
‘
Tl 81 Thallium,” —
'
‘
.
Ca' 20 Calcium
111.49 Indium
..
Po 84 Polonium
"
Th 90 Thorium
'
.}
-c
_6 cm…
1
53 -Iodine;
K 19 Potassium
'Tm 69 Thu]iüm
_
_
_
:
_
.
Ce 58 Cerium
.
_
Ir 77 Iridium
_
Pr_ 59 Prasèody_mium Sn 50 Tin
_
"_
'
_’
‘CS 55 Cèsium
Fe 26 Iron
'
-
Pa 91
Ti—22 Titanium
.
0117 Chlorine
._ Kr 36
Krypton
-
Ra 88 Radium
_
W74 Tungsten '
_
' _
Cr 24 Chromium
La 67 Lanthaum
En 86 Radon
.
:
-
U 92 Uranium)”
.
1Co 27 Cobalt
_
'
Pb 82 Lead
_
Re 75 Rheium
"
'
V 23 Vanàdium
'
"—
_
Ch 41 Colümbium
Li
'3 Lithium
'
_; Rh.45 Rhodiun‘x
Xe 54 Xenon.
'. '
'
_'
'
Cu 29 Copper—'
Lu 71 Lutecium
_
'Rb 37 _Rubidium
_Yb'70 Ytterhium.
_
'
_.
DJ! 66 Dysprbsiumy
Mg 12 MagnésiumRu 44 Ruthenium
Y_39 _Y_ttrium—
'_ -_
_
'
Er 68 "Erbium
"
Mn 25 _Manganése
__
Sm62—SamaumZn 30 21210 '
'
_‘
_'
_.
-Ï —
En 63
_
Ma 43 Masurium
Sc 21 Scandium
21° 40 Zirconium '
_
,
-
-
'Hg80-Merm — 5
'
.
_
THE ‘PERIODIC TABLE
_
.
"
'
a
a
a
b_ a
b
a
b
a
b
a
b
'
'
_
.
1'00_78
.
'
.
_
4.002
_
'
_
_
3..'
-
4
5.
"5
7
.8
.9
10
'
"
'
"
'
‘
.
=
2
El
Be
B
.
c
'N
0
81
Ne
.
.
..
"
;…
.=
_
6940
9.02
10.82
1201
14.008
16.0000
19.00 20.183
'
;
'
11
12
13
14
15
16
.
17
18
»
[
’
;3
Na
Mg'A1
31
,
P
s
01 'A
‘
22.997
24.32
26.97
28.06
81.02
82.06
85.457 99.944
_
'
-
_
19
21
22
23
24
25
_
25
27
28
_
.
Ï
K
Ca
Sc - Tl
V
Cr
Mn
'
Fe
Co
Ni
.
4
89.096
40.08
45.10
47.90
50.95
52.01
54.98
55.84
58.94
58.69
.
29
30
31
32
33
'
34
35
36
'
_
'Cu
Zn
Ga
Ge
As
Se
.
Br Kr
_
..
68.57
65.88
69.72
72.60
74.91
78.96
79.916
88.7
-
3738
39
_
40
41
42
43
44
45
46
'
'
_.
R;b
Sr
"Y'Zr
Gb
Mo
Ma
Ru
Rh _Pd
.
5 _ 85.48
87.68
88.92
91.22
92.91
96.0
_
.
'
101.7
102.91
106.7
47
48
49
'
50
51
52
53
54
.
-
Ag
__
Cd
In . Sn
Sb.
Te
I Xe
'
_
.
_
107.880
112.41
114.76
118.70
'121.76_127.61
126.92 161.8
'
'
.
55
56"
57—71
72
73
74
75
76
77
'
78
Cs
Ba
Hf
Ta
W
Re
”OS
114 Pt
’
132.91
187.86 '
RareEanhs 178.6
180.88184.0
186.31
191.5
199.1 — 195.23
'
.
-
79
80
81
_
8283
.
84
85
86
'
—
Au. 'Hg
Tl
Pb « Bi
Po
—_ Rn
.,
'
'
_
197.2
200.61
204.99
207.21
209.00
210
.
222
"
—._
*
87.
‘88
_
89
90
.
91
92
'
'
.
.
.
'.
—
Ra
AC
Th
Pa
U
_
_
—
.
226.05227
.
232.12
281
288.07
.
'
._
.
-
Rare
58
59
'
60
.
61
62
63
64
65
66.
67
68
69
70
71
_
Earhs
Ce
Pr
Nd
Il
Sm Eu Gd Tb Dy Ho Er Tm Yb Lu
'
_
»
_
'
_
'
140.18
150.43 152.0 156.9
159.2 162.40 168.5 167.64 169.4 173.04 175.0
._
_
Al 13 Aluminum
'
F
9 Fluorine
' _ Mo42
.Se 34 Selenium
'
"
‘
.
Sb 51 Autimony
Gd 64 Gadolinium
Nd 60 Neodymium
Si 14 Silico_
_
‘.A' 18 Argon
Ga 31 Gallium
Ne 10 Neon
Ag47 Silver
_
‘
_
_
As 33 Arsenic
Ge 32 -Germanium
_
Ni 28 Nickel.
Nan Sodium
'
.
'
_
—
=
ABB. 56 Barium
Au79 Gold
N
7
_
Nitrogen
_
Sr 88 Sti:ontium
.’
=
_'
Be
4 Beryilium
Hf 72 Hafnîum.
Os 76_ Osmium .
_
S _16 Sulfur
'
.
'
_.
_'
îBi 83 Bismuth
He 2 Helium
0
8
Oxygen
Ta 73 Tantalum
.
'
"
B' 5 Boron
Ho 67
_
Holmium
_1°_d 46 Palladium
Te 52 Tellurium
.
'
Br 35
Bromine_
H
1 Hydrogen
.
'P 16 'Phosphorus.
_
_Tb"65' Terbiüm.
.
‘
'
.Cd 48 Cadmium
Il 61 Illihium
Pt 78 Platinum
‘
Tl 81 Thallium,” —
'
‘
.
Ca' 20 Calcium
111.49 Indium
..
Po 84 Polonium
"
Th 90 Thorium
'
.}
-c
_6 cm…
1
53 -Iodine;
K 19 Potassium
'Tm 69 Thu]iüm
_
_
_
:
_
.
Ce 58 Cerium
.
_
Ir 77 Iridium
_
Pr_ 59 Prasèody_mium Sn 50 Tin
_
"_
'
_’
‘CS 55 Cèsium
Fe 26 Iron
'
-
Pa 91
Ti—22 Titanium
.
0117 Chlorine
._ Kr 36
Krypton
-
Ra 88 Radium
_
W74 Tungsten '
_
' _
Cr 24 Chromium
La 67 Lanthaum
En 86 Radon
.
:
-
U 92 Uranium)”
.
1Co 27 Cobalt
_
'
Pb 82 Lead
_
Re 75 Rheium
"
'
V 23 Vanàdium
'
"—
_
Ch 41 Colümbium
Li
'3 Lithium
'
_; Rh.45 Rhodiun‘x
Xe 54 Xenon.
'. '
'
_'
'
Cu 29 Copper—'
Lu 71 Lutecium
_
'Rb 37 _Rubidium
_Yb'70 Ytterhium.
_
'
_.
DJ! 66 Dysprbsiumy
Mg 12 MagnésiumRu 44 Ruthenium
Y_39 _Y_ttrium—
'_ -_
_
'
Er 68 "Erbium
"
Mn 25 _Manganése
__
Sm62—SamaumZn 30 21210 '
'
_‘
_'
_.
-Ï —
En 63
_
Ma 43 Masurium
Sc 21 Scandium
21° 40 Zirconium '
_
,
-
-
'Hg80-Merm — 5
'
.