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Structure of the Atom — Science STD 9 — Question

Rajasthan BoardEnglish MediumSTD 9ScienceStructure of the Atom1 Mark
MCQ
The correct electronic configuration of a chloride ion is:
  • A
    $2, 8$
  • B
    $2, 8, 4$
  • ✓
    $2, 8, 8$
  • D
    $2, 8, 7$
✓

Answer

Correct option: C.
$2, 8, 8$
Chloride ion, $Cl^-$ has $18$ electrons
so, its electronic configuration is $2, 8, 8.$

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