MCQ
Ions which have the same electronic configuration are those of
  • A
    Lithium and sodium
  • B
    Sodium and potassium
  • Potassium and calcium
  • D
    Oxygen and chlorine

Answer

Correct option: C.
Potassium and calcium
c
(c) ${K^ + }$ and $C{a^{ + + }}$ have the same electronic configuration

$(1{s^2},\,2{s^2}\,2{p^6},\,3{s^2}3{p^6})$

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