The Nineteenth Century and After, Volume 116Leonard Scott Publishing Company, 1934 |
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Pagina 93
... active in B2 , owes this activity to a pig- ment , ' ovoflavin , ' which when crystallised has a formula of C17H20O6N4 , and which may well be a component of Vitamin B2 itself . If this is so , a further step has been taken towards the ...
... active in B2 , owes this activity to a pig- ment , ' ovoflavin , ' which when crystallised has a formula of C17H20O6N4 , and which may well be a component of Vitamin B2 itself . If this is so , a further step has been taken towards the ...
Pagina 198
... active radiation . Hitherto , three sorts of radiations from radio- active substances had been recognised : helium particles , negative electrons , and waves . The Curie - Joliots showed that positive electrons could also constitute a ...
... active radiation . Hitherto , three sorts of radiations from radio- active substances had been recognised : helium particles , negative electrons , and waves . The Curie - Joliots showed that positive electrons could also constitute a ...
Pagina 202
... active element is an isotope of the bombarded element - i.e . , the atoms of bromine and iodine are converted from inactive into active atoms , but their chemical properties remain unchanged . With the assistance of Rasetti and D ...
... active element is an isotope of the bombarded element - i.e . , the atoms of bromine and iodine are converted from inactive into active atoms , but their chemical properties remain unchanged . With the assistance of Rasetti and D ...
Inhoudsopgave
ANGELL Sir Norman | 136 |
CARR Philip | 205 |
SABATIER Frédéric | 211 |
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