The New Encyclopaedia Britannica, Volume 4Encyclopaedia Britannica, 1974 - Encyclopedias and dictionaries |
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Page 262
... francium ( q.v. ) . Fracastoro , Girolamo , Latinized form HIERONYMUS FRACASTORIUS ( b . c . 1478 , Vero- na , Italy - d . Aug. 8 , 1553 , Casi ) , physician , Fracastoro , engraving by an unknown artist Giraudon poet , astronomer ...
... francium ( q.v. ) . Fracastoro , Girolamo , Latinized form HIERONYMUS FRACASTORIUS ( b . c . 1478 , Vero- na , Italy - d . Aug. 8 , 1553 , Casi ) , physician , Fracastoro , engraving by an unknown artist Giraudon poet , astronomer ...
Page 275
... francium 1622 , Lyons ) , Roman Catholic bishop of Geneva who was active in the struggle against Calvinism and ... francium ( from " France " ) , symbol Fr , heavi- est chemical element of Group Ia in the peri- odic table , the alkali ...
... francium 1622 , Lyons ) , Roman Catholic bishop of Geneva who was active in the struggle against Calvinism and ... francium ( from " France " ) , symbol Fr , heavi- est chemical element of Group Ia in the peri- odic table , the alkali ...
Page 276
... francium ( francium - 223 ) , called also actinium K ( ACK ) , a member of the actinium decay series . Though the longest lived isotope of francium , its half - life is only 21 minutes . Isotopes of masses between 204 and 224 have been ...
... francium ( francium - 223 ) , called also actinium K ( ACK ) , a member of the actinium decay series . Though the longest lived isotope of francium , its half - life is only 21 minutes . Isotopes of masses between 204 and 224 have been ...
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