NEET Chemistry · Hard

Structure of Atom: Ion formation MCQ

Solve this quality-checked NEET multiple-choice question, then review the correct answer and explanation.

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Ion formationHardQuestion 21097

Question

When transition metals form cations, electrons are generally removed first from:

  1. A
    ns orbital
    Correct
  2. B
    (n-1)d orbital
  3. C
    np orbital
  4. D
    f orbital

Correct answer

ns orbital

Explanation

Though 4s fills before 3d, it is removed first during ionisation.