Appendix a

List of the Elements, Their Symbols, and Atomic Weights

The more important elements are marked with an asterisk

O = 16

*Antimony Sb 120.2

*Argon A 39.9

*Arsenic As 75.0

*Barium Ba 137.4

Beryllium Be 9.1

*Bismuth Bi 208.5

*Boron B 11.0

*Bromine Br 79.96

*Cadmium Cd 112.4

Cæsium Cs 132.9

*Calcium Ca 40.1

*Carbon C 12.00

Cerium Ce 140.25

*Chlorine Cl 35.45

*Chromium Cr 52.1

*Cobalt Co 59.0

Columbium Cb 94.0

*Copper Cu 63.6

Erbium Er 166.0

*Fluorine F 19.0

Gadolinium Gd 156.0

Gallium Ga 70.0

Germanium Ge 72.5

*Gold Au 197.2

Helium He 4.0

*Hydrogen H 1.008

Indium In 115.0

*Iodine I 126.97

Iridium Ir 193.0

*Iron Fe 55.9

Krypton Kr 81.8

Lanthanum La 138.9

*Lead Pb 206.9

Lithium Li 7.03

*Magnesium Mg 24.36

*Manganese Mn 55.0

*Mercury Hg 200.0

Molybdenum Mo 96.0

Neodymium Nd 143.6

Neon Ne 20.0

*Nickel Ni 58.7

*Nitrogen N 14.04

Osmium Os 191.0

*Oxygen O 16.00

Palladium Pd 106.5

*Phosphorus P 31.0

*Platinum Pt 194.8

*Potassium K 39.15

Praseodymium Pr 140.5

Radium Ra 225.0

Rhodium Rh 103.0

Rubidium Rb 85.5

Ruthenium Ru 101.7

Samarium Sm 150.3

Scandium Sc 44.1

Selenium Se 79.2

*Silicon Si 28.4

*Silver Ag 107.93

*Sodium Na 23.05

*Strontium Sr 87.6

*Sulphur S 32.06

Tantalum Ta 183.0

Tellurium Te 127.6

Terbium Tb 160.0

Thallium Tl 204.1

Thorium Th 232.5

Thulium Tm 171.0

*Tin Sn 119.0

Titanium Ti 48.1

Tungsten W 184.0

Uranium U 238.5

Vanadium V 51.2

Xenon Xe 128.0

Ytterbium Yb 173.0

Yttrium Yt 89.0

*Zinc Zn 65.4

Zirconium Zr 90.6