Science and Life: Aberdeen AddressesThis work is a collection of addresses and articles written at Aberdeen University regarding the interaction between science and society. |
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Página 102
The atomic weight of bismuth is 208 , but the writer was unable to find in a special examination of over 20 kilograms of a certain thorium mineral even a trace of bismuth , though there was 0-3 per cent . of lead .
The atomic weight of bismuth is 208 , but the writer was unable to find in a special examination of over 20 kilograms of a certain thorium mineral even a trace of bismuth , though there was 0-3 per cent . of lead .
Página 104
... 83 84 85 86 87 88 | 89 | 90 | 91 92 PO Em . Ra ac . Ux LEAD - THE FINAL PRODUCT 105 The figures in the. 197.2 2006 204.0 207.2 208.0 232.1 · 238.2 Gold Mercury Thallium Lead Bismuth Thorium Uranium one . 104 THE EVOLUTION OF MATTER.
... 83 84 85 86 87 88 | 89 | 90 | 91 92 PO Em . Ra ac . Ux LEAD - THE FINAL PRODUCT 105 The figures in the. 197.2 2006 204.0 207.2 208.0 232.1 · 238.2 Gold Mercury Thallium Lead Bismuth Thorium Uranium one . 104 THE EVOLUTION OF MATTER.
Página 106
... have thrown any light on the alchemical problem of how to make gold from lead or mercury . The answer may be given at once . Gold is followed in the Periodic Table by mercury , thallium , lead , and bismuth , occupying successive ...
... have thrown any light on the alchemical problem of how to make gold from lead or mercury . The answer may be given at once . Gold is followed in the Periodic Table by mercury , thallium , lead , and bismuth , occupying successive ...
Página 127
Polonium , or radium - F , by its close chemical analogy to both bismuth and tellurium , was characterised as an element of the sulphur family occupying the vacant place contiguous to bismuth . Actinium , by its resemblance in chemical ...
Polonium , or radium - F , by its close chemical analogy to both bismuth and tellurium , was characterised as an element of the sulphur family occupying the vacant place contiguous to bismuth . Actinium , by its resemblance in chemical ...
Página 130
... radium - A from polonium , the three B - members and radium - D from lead , the three C - members and radium - E from bismuth , actinium - D and thorium - D from thallium . 1 RADIOACTIVE CHANGE AND THE PERIODIC LAW .
... radium - A from polonium , the three B - members and radium - D from lead , the three C - members and radium - E from bismuth , actinium - D and thorium - D from thallium . 1 RADIOACTIVE CHANGE AND THE PERIODIC LAW .
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a-particle actinium active ancient appear applied Arts atomic weight attempt become bismuth branch Carnegie cent century chemical chemical character chemistry complete conception concerned continuous course definite departments direct discovery elements energy existence external fact Faculty follow fundamental future give given hand hitherto human important inanimate individual interest isotopes knowledge known labour lead learning least less living mass material matter means mechanism methods million mind minerals nature occur once original past period philosophy physical position possible practical present problem processes progress pure quantity question radioactive radium regard remains result scientific separated spirit subjects successive teaching thorium thought tion to-day Trust truth ultimate universities uranium wealth whole