Bond length in element

This length refers to the internuclear separation between the atoms in the element.

Most data are abstracted from reference 1 but some missing values are taken from the primary literature. Lengths do depend upon the allotrope, or form of the element, to some extent. Thus, the C-C length in graphite is 142.6 pm whereas the C-C length in diamond is 154.1 pm. While values are given for the Group 18 gases, these are separations, not bond lengths.

Image showing periodicity of bond length in element for 7s, 7p, and 7d chemical elements.
mage showing periodicity of bond length in element for 7s, 7p, and 7d chemical elements.

Units

pm

Notes

To convert from pm (picometres) to Å (Ångstroms), divide by 100.

Literature sources

  1. L.E. Sutton (ed.) in Table of interatomic distances and configuration in molecules and ions, Supplement 1956-1959, Special publication No. 18, Chemical Society, London, UK, 1965.
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*Lanthanoids *
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**Actinoids **
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