Arrange the following elements in the increasing order of their metallic character Mg, Ca, K, Ge, Ga


The metallic character of an element is defined as the easiness of its atom is losing electrons.

  • According to the modern periodic table, the metallic character of an element decreases while moving from left to right across a period.
  • This happens due to the fact that while moving from left to right in a period, the number of electrons and protons in an atom increases and this causes an increase in nuclear force on the electrons and hence losing electrons becomes difficult.
  • Metallic character increases down the group, and this happens because while moving down the group, atomic radius increases and hence it becomes easier to lose electrons.
Ge < Ga < Mg < Ca < K

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