TABLE OF ATOMIC WEIGHTS. 365 



Nitrogen ........................... r 3-93 1 4>4 



Osmium ............... ............ J ^>9-SS I 9-99 



Oxygen ........................... 15.88 16.00 



Palladium .......................... IO 5-56 106.36 



Phosphorus ......................... 30.79 3 J .O2 



Platinum ........................... 193-41 l 94-%9 



Potassium ................... ....... 38.82 39. 1 1 



Praseodymium ................ ..... 142.50 143.60 



Rhodium ........................... 102.23 103.01 



Rubidium.. ....................... 84.78 85.43 



Ruthenium ......................... 100.91 101.68 



Samarium .......................... I 49- I 3 150.26 



Scandium ..... ...... .............. 43-78 44-12 



Selenium ........................... 78.42 79.02 



Silicon ............................. 28. 1 8 28.40 



Silver .............................. 107. 1 1 107.92 



Sodium ............................ 22.88 23.05 



Strontium ......................... 86.95 87.61 



Sulphur ............................ 31.83 32.07 



Tantalum .......................... 181.45 182.84 



Tellurium .......................... 126.52 127.49 



Terbium ........................... 158.80 160.00 



Thallium ................. ........... 202.61 204.15 



Thorium .......................... 230.87 232.63 



Thulium ........... ................ 169.40 170.70 



Tin ..... , ...... ................. 118.15 119.05 



Titanium ........................... 47-79 48. 1 5 



Tungsten ......................... J83-43 ^4. 83 



Uranium ........................... 237.77 239.59 



Vanadium ........................ 5-99 5 r -38 



Ytterbium ......................... 171.88 ! 73-i9 



Yttrium ........ . ................... 88.35 89.02 



Zinc. ... ........................... 64.91 65.41 



Zirconium .......................... 89. 72 90.40 



