Note 1 — Chapter III · THE CHEMICAL ASPECT.
Reading edition
Symbols. METALLOIDS. Combining Weight.
Elements of life: of primary importance. O Oxygen 1II 16
H Hydrogen I 1
N Nitrogen V 14
C Carbon IV 12
Elements of secondary importance. Cl Chlorine I 35 .5
Br Bromine I 80
I Iodine I 127
F Fluorine I 29
P Phosphorus V 31
S Sulphur VI 32
Si Silicon IV 28
B Boron III 11
Se Selenium VI 79 .5
Te Tellurium VI 179
Mechanics, arts, science, and medicine. Al Aluminium IV 27 .4
Ca Calcium II 40
(Cuprum) Cu Copper II 63 .5
(Ferrum) Fe Iron IV 56
(Plumbum) Pb Lead IV 207
Mn Manganese IV 55
(Hydrargyrum) Hg Mercury II 200
(Kalium) K Potassium I 39 .1
(Argentum) Ag Silver I 108
(Natrium) Na Sodium I 23
(Stannum) Sn Tin IV 118
Zn Zinc II 65 .3
(Stibium) Sb Antimony V 122
As Arsenic V 75
Ba Barium II 137
Bi Bismuth V 210
Cr Chromium VI 52 .2
Co Cobalt IV 58 .7
(Aurum) Au Gold III 197
In Indium IV 74
Mg Magnesium II 24
Ni Nickel IV 58 .7
Pd 2Palladium IV 106 .6
Pt Platinum IV 197 .5
Sr Strontium II 87 .5
Ti Titanium IV 50
W Tungsten VI 184
U Uranium IV 120
Little known, rarely used. Be Beryllium II 9 .3
Cd Cadmium II 112
Cs Cæsium I 133
Cr Cerium IV 92
D Didymium II 95
E Erbium II 112 .6
Ir Iridium IV 198
La Lanthanum II 92
Li 3Lithium I 7
Mo Molybdenum VI 96
Nb Niobium V 94
Os Osmium IV 199 .2
Rh Rhodium IV 104 .4
Rb Rubidium I 85 .4
Ru Ruthenium IV 104 .4
Ta Tantalum V 182
Tb Terbium
Tl Thallium III 204
Th Thorium II 231 .5
V Vanadium V 51 .3
Y Yttrium II 61
Zr Zirconium III 89 .6