Radius - metallic (12): period 6
This refers to the metal-metal distances in the element, as far as possible in environments in which the metal is 12-coordinate and at or near ambient temperatures.
Some other data is taken direct from the primary literature.
- G.W.C. Kaye and T.H. Laby in Tables of physical and chemical constants, Longman, London, UK, 15th edition, 1993.
- W.W. Porterfield in Inorganic chemistry, a unified approach, Addison Wesley Publishing Co., Reading Massachusetts, USA, 1984.