MCQ
Chloride ion and potassium ion are isoelectronic. Then
  • A
    Potassium ion is relatively bigger
  • B
    Depends on the other cation and anion
  • C
    Their size are same
  • Chloride ion is bigger than potassium ion

Answer

Correct option: D.
Chloride ion is bigger than potassium ion
d
(d) Chloride ion and potassium ion are isoelectronic, isoelectronic ions are those ions having same number of electrons.

$K = 2,\,8,\,8,\,1$                                        ${K^ + } = 2,\,8,\,8$

$Cl = 2,\,8,\,7$                                        $C{l^ - } = 2,\,8,\,8$

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