Science and Life: Aberdeen AdressesE. P. Dutton, 1920 - 229 páginas |
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Página 116
... successive changes , commencing with the two primary radio - elements uranium and thorium , and including ultimately all the known radio - elements , added little to the con- ceptions of chemistry beyond the disturbing fact that the ...
... successive changes , commencing with the two primary radio - elements uranium and thorium , and including ultimately all the known radio - elements , added little to the con- ceptions of chemistry beyond the disturbing fact that the ...
Página 117
... successive changes suffered by the elements uranium and thorium in the course of their disintegration , are chiefly two . In the first place , the whole phenomena are inevitable , incapable of being changed or deviated from their ...
... successive changes suffered by the elements uranium and thorium in the course of their disintegration , are chiefly two . In the first place , the whole phenomena are inevitable , incapable of being changed or deviated from their ...
Página 118
... successive products assume the above stationary ratio is of course entirely different from chemical equilibrium , and is the condition in which for each member of the series except the first as much is produced as changes further in the ...
... successive products assume the above stationary ratio is of course entirely different from chemical equilibrium , and is the condition in which for each member of the series except the first as much is produced as changes further in the ...
Página 120
... successive radioactive changes , a- or B - particles are expelled , one a - particle per atom disintegrating for each change , although for the B - particles our knowledge is less exact . In some cases , certainly , although these are ...
... successive radioactive changes , a- or B - particles are expelled , one a - particle per atom disintegrating for each change , although for the B - particles our knowledge is less exact . In some cases , certainly , although these are ...
Página 124
... successive products , but some historical comment on the various influences which have gone to shape the current conception of the chemical element may be of interest before dealing with this development . The analysis of matter into ...
... successive products , but some historical comment on the various influences which have gone to shape the current conception of the chemical element may be of interest before dealing with this development . The analysis of matter into ...
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Términos y frases comunes
a-particle Aberdeen actinium active æsthetic ancient animal Arts atomic number atomic weight B-ray bismuth branch British Science Guild Carnegie Trust cent century chemical character chemical elements chemist chemistry classical coal commercial education conception creative definite direct discovery disintegration electricity electrons emanation energy evolved existence expelled experimental external Faculty FREDERICK SODDY fundamental H. H. Asquith helium hitherto human ideals inanimate universe investigation ionium isotopes J. J. Thomson knowledge known labour lead living mass material means mechanism ment million mind minerals modern nation nature original past Periodic Law periodic table philosophy physical pitchblende polonium practical present problem processes pure quantity radio-elements radioactive change radium radium-C recognised regard scientific study Scotland Soddy spectroscopic spectrum spirit study and research subjects teaching technical or commercial thallium thought tion to-day transmutation truth ultimate University of Aberdeen uranium and thorium uranium-X wealth whole