Philosophical MagazineTaylor & Francis., 1921 - Physics |
From inside the book
Results 1-5 of 49
Page 74
... atomic weight A , and let the ray at the point considered have traversed a mass of the gas which per unit area is equal to m . Then the absorption suffered by the ray is equivalent to the absorption suffered by traversing a distance r ...
... atomic weight A , and let the ray at the point considered have traversed a mass of the gas which per unit area is equal to m . Then the absorption suffered by the ray is equivalent to the absorption suffered by traversing a distance r ...
Page 140
... atomic weight is even approximately correct this element must have one isotope at least , of atomic weight greater than 78. But the numbers . 79 , 80 , 81 , 82 , 83 , 84 , are already filled by isotopes of Br and Kr , so that it is ...
... atomic weight is even approximately correct this element must have one isotope at least , of atomic weight greater than 78. But the numbers . 79 , 80 , 81 , 82 , 83 , 84 , are already filled by isotopes of Br and Kr , so that it is ...
Page 141
... atomic weight . This failure is probably to be ascribed to the exceedingly unstable nature of the antimony compound . TIN ( At . Wt . 118 · 7 ) . Tin tetrachloride was employed in the investigation of this element . The vapour of this ...
... atomic weight . This failure is probably to be ascribed to the exceedingly unstable nature of the antimony compound . TIN ( At . Wt . 118 · 7 ) . Tin tetrachloride was employed in the investigation of this element . The vapour of this ...
Page 143
... Atomic Atomic Number . Weight . Minimum number of Masses of Isotopes in Isotopes . order of intensity . ...... He ..... B 125 1 · 008 1 1.008 3.99 1 4 10.9 2 11 , 10 C 6 12.00 1 12 N 7 14.01 1 14 O 8 16.00 1 16 F 9 19.00 1 19 Ne 10 ...
... Atomic Atomic Number . Weight . Minimum number of Masses of Isotopes in Isotopes . order of intensity . ...... He ..... B 125 1 · 008 1 1.008 3.99 1 4 10.9 2 11 , 10 C 6 12.00 1 12 N 7 14.01 1 14 O 8 16.00 1 16 F 9 19.00 1 19 Ne 10 ...
Page 144
Summary . Further experiments with the mass spectrograph on the elements Se , Te , I , Sh , and Sn are described . Of these only I gives definite results . It is simple and of atomic weight 127 . The work on xenon is repeated with ...
Summary . Further experiments with the mass spectrograph on the elements Se , Te , I , Sh , and Sn are described . Of these only I gives definite results . It is simple and of atomic weight 127 . The work on xenon is repeated with ...
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absorption alpha particle aluminium angle anode anode rays apparatus atomic number atomic weight axis Balmer series beam C₁ calculated cathode centimetres centre charge circuit coefficient collision constant corresponding crystal curvature curve deflexion determined direction distance effect electric electric rays electrons elements emission emitted energy equation experimental experiments filament film formula frequency give given helium helium atom hydrogen increase ionization ionization chamber ions isotopes J. J. Thomson length lens light liquid magnetic field means measured mercury metals method molecules motion negative nitrogen normal nucleus observed obtained orbit oscillation paper particles Phil photographs plane plate positive potential pressure quantity radiation radium range ratio rays reflexion refraction rings shown solution spectrum surface TABLE temperature theory thickness thorium tube velocity vibration viscosity volts wave-length wire zero