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 91
... periodic table in the family of the alkaline - earth elements , comprising calcium , 40 , strontium , 85 , and barium , 137. In its whole character it has the closest resemblance to the latter element , and can only be separated from it ...
... periodic table in the family of the alkaline - earth elements , comprising calcium , 40 , strontium , 85 , and barium , 137. In its whole character it has the closest resemblance to the latter element , and can only be separated from it ...
Página 95
... Periodic Table . It was one of very many startling predictions of a similar character made as soon as the new point of view was attained . But it has been the last to receive confirmation and the difficulties have been great . Were ...
... Periodic Table . It was one of very many startling predictions of a similar character made as soon as the new point of view was attained . But it has been the last to receive confirmation and the difficulties have been great . Were ...
Página 102
... Periodic Table to a new place , next but one to it in the direction of diminishing atomic weight . If the expelled particle is a ß - particle the change of place is invariably into the next place in the opposite direction . After three ...
... Periodic Table to a new place , next but one to it in the direction of diminishing atomic weight . If the expelled particle is a ß - particle the change of place is invariably into the next place in the opposite direction . After three ...
Página 103
... Periodic Table and are absolutely identical in all their 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 ...
... Periodic Table and are absolutely identical in all their 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 ...
Página 104
... Periodic Law have dis- closed . The places in the Periodic Table represent integral nett charges of electricity in the constitution of the nucleus . The expulsion of the a - particle with its double charge of positive electricity shifts ...
... Periodic Law have dis- closed . The places in the Periodic Table represent integral nett charges of electricity in the constitution of the nucleus . The expulsion of the a - particle with its double charge of positive electricity shifts ...
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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 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