Ionic radius

radius of an atom's ion in ionic crystals structure

The ionic radius is used to see how big or small the ions that atoms may make on their own.[1] For instance, if the atom makes a positive ion by getting rid of one electron or more, the ionic radius would be smaller.[1] The opposite is also true, so if the atom makes a negative ion by getting one electron or more, the ionic radius would be bigger.[1]

References

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  1. 1 2 3 Lazar, Miriam A.; Tarendash, Albert (2020-06-19). Let's Review Regents: Physics--Physical Setting 2020. Simon and Schuster. ISBN 978-1-5062-7087-6.