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Promethium mass number range

Promethium Pm 61 artificial isotopes only mass number range 141-151... [Pg.876]

Symbol Pm atomic number 61 atomic weight 145 a lanthanide series inner-transition metal electron configuration [Xe]4/56s2 partially filled f orbitals valence states -i-3 ionic radius Pm " 0.98A aU isotopes of promethium are radioactive twenty-two isotopes in the mass range 134-155 longest-lived isotope Pm-145, ti/2 17.7 year shortest-bved isotope Pm-140, ti/2 9.2 sec. [Pg.780]

See other pages where Promethium mass number range is mentioned: [Pg.43]    [Pg.1369]    [Pg.67]   
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

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