Multiple choice

Which alkali metal shows anomalous behaviour?

  1. Li

  2. Na

  3. Be

  4. K

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A Correct answer
Explanation

Lithium displays most of the characteristic properties of group to which it belongs. However, it differs in many respects from the remaining characteristic properties of the metals of Group 1.  Lithium has a diagonal relationship with magnesium and both have similarities in some of their characteristics.