Chemical News and Journal of Industrial Science, Tomy 119-120Chemical news office., 1919 |
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Strona 14
... elements would have an infinite conductivity at or close to the absolute zero temperature , whereas the semi- metallic and non - metallic elements would become poorer conductors or even better insulators at low temperatures . These are ...
... elements would have an infinite conductivity at or close to the absolute zero temperature , whereas the semi- metallic and non - metallic elements would become poorer conductors or even better insulators at low temperatures . These are ...
Strona 16
... elements below lead in atomic mass cannot have isotopic atoms . The process of evolution followed by one of devolution seems to indicate that in the genesis of the elements , according to the well - known pendulum illustra- tion of ...
... elements below lead in atomic mass cannot have isotopic atoms . The process of evolution followed by one of devolution seems to indicate that in the genesis of the elements , according to the well - known pendulum illustra- tion of ...
Strona 27
... elements , the residual product would be two places lower in the Periodic Table , since each element would have lost two valences together with a mass of 4 . It was not known by direct experiment until about 1913 that helium has two ...
... elements , the residual product would be two places lower in the Periodic Table , since each element would have lost two valences together with a mass of 4 . It was not known by direct experiment until about 1913 that helium has two ...
Strona 28
... element would be facilitated . solution with a 10 per cent solution of nitric acid . The concentration of the acid in ... elements . The average atomic weight of the earths in the mixture was 106 95. A neutral solution of the nitrates of ...
... element would be facilitated . solution with a 10 per cent solution of nitric acid . The concentration of the acid in ... elements . The average atomic weight of the earths in the mixture was 106 95. A neutral solution of the nitrates of ...
Strona 46
... elements thought to be present in some of the hotter stars . At the present time the manipulation and spectroscopic investigations of gases have reached a high state of de- PROCEEDINGS OF SOCIETIES . ASSOCIATION OF BRITISH CHEMICAL ...
... elements thought to be present in some of the hotter stars . At the present time the manipulation and spectroscopic investigations of gases have reached a high state of de- PROCEEDINGS OF SOCIETIES . ASSOCIATION OF BRITISH CHEMICAL ...
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