Covalence of atoms in the heavier transition metals.

The observed magnetic properties of the heavier transition metals permit them to have larger metallic valences than their iron-group congeners. With 0.72 metallic orbital, as found for the iron-group metals, the maximum metallic valence and minimum interatomic distance would occur for 8.28 transargononic electrons. The curves of observed interatomic distances for the close-packed metals of the second and third long periods have minima at this point, supporting the assignment of high valences to these metals. Values of the single-bond radii corresponding to these valences are calculated.

[1]  L. Pauling Maximum-valence radii of transition metals. , 1975, Proceedings of the National Academy of Sciences of the United States of America.

[2]  A. P. Ginsberg,et al.  Transition Metal-Hydrogen Compounds. II. The Crystal and Molecular Structure of Potassium Rhenium Hydride, K2ReH9 , 1964 .

[3]  L. Pauling,et al.  A Theory of Ferromagnetism. , 1953, Proceedings of the National Academy of Sciences of the United States of America.

[4]  Linus Pauling,et al.  A resonating-valence-bond theory of metals and intermetallic compounds , 1949, Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences.

[5]  Linus Pauling,et al.  Atomic Radii and Interatomic Distances in Metals , 1947 .

[6]  Linus Pauling,et al.  The Nature of the Interatomic Forces in Metals , 1938 .

[7]  J. Donohue The structures of the elements , 1974 .

[8]  V. McClure Localized and Equivalent Orbitals. , 1970 .