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Polonium mass number range

Presently. 24 isotopes of actinium, with mass numbers ranging from 207 to 2.30, have been identified. All are radioactive. One year after the discovery of polonium and radinm by the Curies, A. Debierne found an unidentified radioactive substance in the residue after treatment of pitchblende. Debierne named the new material actinium after the Greek word for ray. F. Giesel, independently in 1902, also found a radioactive material in the rare-earth extracts of pitchblende. He named... [Pg.26]

Polonium Po 84 artificial isotopes only mass number range 204-210... [Pg.876]

Polonium. Po at. wt of naturally occurring isotope 210 at. no. 84 valence 4. occasionally 2, rarely 6. Isotopes range in mass number from 193-218 all are radioac-... [Pg.1202]

See other pages where Polonium mass number range is mentioned: [Pg.915]   
See also in sourсe #XX -- [ Pg.876 ]

See also in sourсe #XX -- [ Pg.1012 ]

See also in sourсe #XX -- [ Pg.1124 ]



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Mass number

Mass range

Polonium

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