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Question

Explain the formation of sodium ion from sodium atom.


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Solution

Formation of sodium ion from sodium atom:

  1. Sodium atom (Na) has atomic number 11. Thus, electronic configuration of sodium atom is (2,8,1).
  2. Sodium atom loses one electron from the outermost shell.
  3. On losing one electron, a positively charged sodium ion (Na+) is formed.

Thus, sodium atom (Na) loses one electron and forms sodium ion (Na+).


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