The Nineteenth Century and After, Volume 116Leonard Scott Publishing Company, 1934 |
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Pagina 200
... produced in sodium was about 7 seconds , while that of the phosphorus substance was about 40 minutes . He deduced that the sodium substance was probably a radioactive form of aluminium , while the phosphorus substance was a radioactive ...
... produced in sodium was about 7 seconds , while that of the phosphorus substance was about 40 minutes . He deduced that the sodium substance was probably a radioactive form of aluminium , while the phosphorus substance was a radioactive ...
Pagina 201
... produced by bombarding carbon with heavy hydrogen has the same radio- active properties as the radio - nitrogen produced by bombarding boron with swift helium atoms . Atoms of helium , hydrogen , and heavy hydrogen had proved to be ...
... produced by bombarding carbon with heavy hydrogen has the same radio- active properties as the radio - nitrogen produced by bombarding boron with swift helium atoms . Atoms of helium , hydrogen , and heavy hydrogen had proved to be ...
Pagina 202
... produced in the series of experiments . Vanadium gave a substance with a half - life of 5 minutes . For arsenic the ... produced by neutrons emitted negative electrons . This was in contrast with the new radioactive atoms produced by ...
... produced in the series of experiments . Vanadium gave a substance with a half - life of 5 minutes . For arsenic the ... produced by neutrons emitted negative electrons . This was in contrast with the new radioactive atoms produced by ...
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