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Nobelium electronic configurations

Between these two blocks of elements there are two further blocks containing the transition elements. Strictly speaking, the term transition element applies to an element with a partly filled d or f subshell and so excludes those with d or d and F or electron configurations. However, it is convenient to include copper, silver and gold in this classification as these elements commonly form ions with partly filled d subshells. Although their neutral atoms have d electron configurations, it is the chemistry of their ions which is of primary interest here. Similar arguments apply to ytterbium and nobelium. Their atoms have P s ... [Pg.1]

Nobelium is a member of the actinide series of elements. The ground state electron configuration is assumed to be (Rn)5fl47s2, by analogy with the equivalent lanthanide element ytterbium ([Kr]4fl46s2) there has never been enough nobelium made to experimentally verify the electronic configuration. Unlike the other actinide elements and the lanthanide elements, nobelium is most stable in solution as the dipositive cation No ". Consequently its chemistry resembles that of the much less chemically stable dipositive lanthanide cations or the common chemistry of the alkaline earth elements. When oxidized to No, nobelium follows the well-estabhshed chemistry of the stable, tripositive rare earth elements and of the other tripositive actinide elements (e.g., americium and curium), see also Actinium Berkelium Einsteinium Fermium Lawrencium Mendele-vium Neptunium Plutonium Protactinium Ruthereordium Thorium Uranium. [Pg.854]

What electronic configuration would you ascribe to nobelium considering its place in the periodic system and its chemistry ... [Pg.439]

The last row of elements begins with francium (Z = 87 electron configuration [Rn]7s ) 2nd radium (Z = 88 electron configuration [Rn]7s ), and then continues with the actinide series, hich starts at actinium (Z = 89) and ends with nobelium (Z = 102). The actinide series has rartially filled 5/and/or 6d subshells. The elements lawrencium (Z = 103) through darmstadtium Z = 110) have a filled 5/subshell and are characterized by the filling of the 6d subshell. [Pg.225]

Before its discovery, nobelium was expected to be a trivalent ion in aqueous solution and to exhibit a chemical behavior similar to the elements preceding it in the actinide series. However, in 1949, Seaborg predicted that a relatively stable 2-t-state might exist for element 102 due to the special stability of the filled 5f electronic configuration [55], Twenty years later, this prediction was confirmed. [Pg.225]

The electronic ground state of gaseous nobelium atoms has been predicted to be the So level of the 5f 7s configuration [42]. No experimental information is available. [Pg.225]


See other pages where Nobelium electronic configurations is mentioned: [Pg.628]    [Pg.34]    [Pg.87]    [Pg.81]    [Pg.186]    [Pg.411]    [Pg.464]    [Pg.967]    [Pg.1059]    [Pg.158]    [Pg.34]    [Pg.269]    [Pg.217]    [Pg.4]    [Pg.217]    [Pg.264]    [Pg.165]   
See also in sourсe #XX -- [ Pg.408 ]




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