A text-book of inorganic chemistry / by George Senter.

  • Senter, George, 1874-
Date:
1913
Catalogue details

Licence: In copyright

Credit: A text-book of inorganic chemistry / by George Senter. Source: Wellcome Collection.

    677/678
    INTERNATIONAL ATOMIC WEIGHTS, 1914 Elements. Syirw bo Is. ■»- 0 = i6. Approx. At. Wt. Elements. Sym- bols. At. Wt. 0 = 16. Approx. At. Wt. Aluminium A1 27.I 27 Neodymium Nd 144-3 144 Antimony . . Sb 120.2 120 ; Neon .... Ne 20.2 20 (Stibium) Nickel . . . Ni 58 68 58.5 Argon . . . A 39.88 40 Niton .... ... 222.4 222.5 Arsenic . . As 74.96 75 (.Radium emanation) Barium . ., Ba 137- 37 137-5 Nitrogen . . . N 14.01 14 Bismuth . . Bi 208.0 208 Osmium . . . Os 190.9 191 Boron . . . B 11.0 11 Oxygen . . . 0 16.00 l6 Bromine . . Br 79.92 80 Palladium . . Pd 106.7 106.5 Cadmium . . Cd 112.4 112.5 Phosphorus . . P 31-04 31 Caesium . . Cs 132.81 133 Platinum . . . Pt 195-2 19s Calcium . . Ca 40.07 40 Potassium K 39.10 39 Carbon . . c 12.00 12 [Kali uni) Cerium . . Ce 140.25 140 Praseodymium . Pr 140.6 140.5 Chlorine . . Cl 35-46 35-5 Radium . . Ra 226.4 226 Chromium Cr 52.0 52 Rhodium . . . Rh 102.9 103 Cobalt . . . Co 58.97 59 Rubidium . . Rb 85-45 85-5 Columbium . Cb 93 5 93-5 Ruthenium . . Ru 101.7 101.5 Copper. . . Cu 63 57 63-5 Samarium . . Sa 150.4 I5°-5 (Cuprum) Scandium . . Sc 44.1 44 Dysprosium . Dy 162.5 162.5 Selenium . . . Se 79-2 79 Erbium . . Er 167.7 167-5 Silicon . . . Si 28.3 28 Fluorine . . F 19.0 19 Silver .... Ag 107.88 108 Gadolinium . Gd 157-3 157 [Argentum] Gallium . . Ga 69.9 70 Sodium . . . Na 23.00 23 Germanium . Ge 725 72.5 [Natrium] Glucinum . . G1 9.1 9 Strontium . . Sr 87.63 87-5 (.Beryllium) Sulphur . . . S 32.07 32 Gold (Aurum) Au 197.2 197 Tantalum . . Ta 181.5 181.5 Helium . . He 3-99 4 Tellurium . . Te 127-5 i27-5 Holmium . . Ho 163- 5 163.5 Terbium . . . Tb 159 2 159 Hydrogen . . H 1.008 I Thallium . . . T1 204.0 204 Indium . . In 114.8 115 rl horium . . . Th 232.4 232.5 Iodine . . . 1 126.92 127 Thulium . . . Tm 168.5 168.5 Iridium . . Ir 193-1 193 Tin Sn 119.0 119 Iron (Ferrum) Fe 55.84 56 [Stannum] Krypton . . Kr 82.92 83 Titanium . . . Ti 48.1 48 Lanthanum . La 139.0 139 Tungsten . . . W 184.0 184 Lead . . . Pb 207.10 207 Uranium . . U 238.5 238.5 [Plumbum] Vanadium . . V 510 5i Lithium . . Li 6.94 7 Xenon . . . X 130.2 130 Lutecium . . Lu 174.0 174 Ytterbium . . Yb 172.0 172 Magnesium . Mg 24.32 24 (Neoytterbium) Manganese Mn 54-93 55 Yttrium . . . Yt 89.0 89 Mercury (Hy- Hg 200.6 200.5 Zinc .... Zn 65-37 65-5 dr aryy rum) Zirconium . . Zr 90.6 90-5 Molybdenum . Mo 96.0 96 The International Weights may be taken as correct to the number of decimal places given. The approximate numbers are sufficiently accurate for many purposes.