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Ionic radii
This table gives some ionic radii. In this table, geometry refers to the arrangment of the ion's nearest neighbours. Size does depend upon geometry and environment. For electronic configurations, where it matters, the values given for octahedral species are low spin unless stated to be high spin. The terms low spin and high spin refer to the electronic configurations of particular geomtries of certain d-block metal ions. Further information is available in inorganic chemistry textbooks, usually at Level 1 or First Year University level. For definitions of ionic radius and further information, follow the hypertext link.
Ion Coordination type Radius / pm
Be(II) 4-coordinate, tetrahedral 41
Be(II) 6-coordinate, octahedral 59
Pauling ionic radii
This table shows Pauling radii for beryllium
Ion Pauling radius / pm
Be(I) 44
Be(II) 31
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