Which combination of statements is true regarding atomic orbitals?

(A) An electron in an orbital of high angular momentum stays away from the nucleus than an electron in the orbital of lower angular

Question

Which combination of statements is true regarding atomic orbitals?

(A) An electron in an orbital of high angular momentum stays away from the nucleus than an electron in the orbital of lower angular momentum.

(B) For a given value of the principal quantum number, the size of the orbit is inversely proportional to the azimuthal quantum number.

(C) According to wave mechanics, ground state angular momentum = .

(D) The plot of  vs  for various azimuthal quantum numbers shows peak shifting towards higher  value.

Canvas Classes · Accepted Answer

- (A) ✓ — Higher  → more angular momentum → electron spends more time away from nucleus (centrifugal effect).
- (B) ✗ — For given , higher  → smaller radial extent (more penetrating), so size is NOT inversely proportional to  in a simple way.
- (C) ✗ — Ground state (): angular momentum = , not .
- (D) ✓ — As  increases (for same ), the peak of  vs  shifts to higher .

Correct: (A) and (D) → Answer: Option (4)

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