Science and Life: Aberdeen AddressesJ. Murray, 1920 - 229 páginas This work is a collection of addresses and articles written at Aberdeen University regarding the interaction between science and society. |
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Página 99
Aberdeen Addresses Frederick Soddy. HELIUM PRODUCED BY RADIUM 99 remarkable character favoured helium . Thus helium , though it forms no compounds ... chemical balance or II cubic millimetres by volume . Helium has also been detected as a ...
Aberdeen Addresses Frederick Soddy. HELIUM PRODUCED BY RADIUM 99 remarkable character favoured helium . Thus helium , though it forms no compounds ... chemical balance or II cubic millimetres by volume . Helium has also been detected as a ...
Página 102
... properties different from the parent , but different in a very definite and striking way . If the particle expelled is the a - particle , the element after this expulsion invariably changes its whole chemical character and passes from ...
... properties different from the parent , but different in a very definite and striking way . If the particle expelled is the a - particle , the element after this expulsion invariably changes its whole chemical character and passes from ...
Página 103
... chemical properties are called isotopes . The recog- nition of such isotopes is fundamentally new , and cuts more deeply into old - established ideas of the nature of matter than even the surprising discoveries of the genesis of one ...
... chemical properties are called isotopes . The recog- nition of such isotopes is fundamentally new , and cuts more deeply into old - established ideas of the nature of matter than even the surprising discoveries of the genesis of one ...
Página 105
... chemical character . Ionium is isotopic with thorium , mesothorium I. with radium , and so on . To the chemist and the spectroscopist they would be taken as one . Not so , however , to the newer methods of radioactivity . When the whole ...
... chemical character . Ionium is isotopic with thorium , mesothorium I. with radium , and so on . To the chemist and the spectroscopist they would be taken as one . Not so , however , to the newer methods of radioactivity . When the whole ...
Página 112
... chemical character . THE TRANSMUTATIONAL CHARACTER OF RADIO- ACTIVE CHANGE . If a chemist were to purify an element , say lead from silver , and found , on re - examining the lead at a later date , that silver was still present , and ...
... chemical character . THE TRANSMUTATIONAL CHARACTER OF RADIO- ACTIVE CHANGE . If a chemist were to purify an element , say lead from silver , and found , on re - examining the lead at a later date , that silver was still present , and ...
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Términos y frases comunes
a-particle Aberdeen actinium active 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 direction 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 religion scientific study Scotland Soddy spectroscopic spectrum spirit study and research subjects successive teaching technical or commercial thallium thought tion to-day transmutation truth ultimate University of Aberdeen uranium and thorium wealth whole