Atomic radius (empirical) These values derived by J.C. Slater
are an empirical set of atomic radii derived by the careful
comparison of bond lengths in over 1200 bond types in ionic,
metallic, and covalent crystals and molecules (reference 1). The
idea is that for a bond A-B, the atomic radius of A added to the
atomic radius of B will give a reasonable estimate for the A-B
separation in whatever environment. A single set of radii is
very useful for most purposes, however, for very accurate work
adjustments would have to be made to the values quoted to
reflect the specific environment of the element (such as
coordination number). Values are given to an accuracy of about 5
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