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AP EAMCET · Chemistry · Structure of Atom

In \(f\)-block elements, orbitals are progressively filled by the electrons.

  1. A \(3 f\) and \(4 f\)
  2. B \(4 f\) and \(5 f\)
  3. C \(5 f\) and \(6 f\)
  4. D \(6 f\) and \(7 f\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(4 f\) and \(5 f\)

Step-by-step Solution

Detailed explanation

The general electronic configuration of \(f\)-block elements is \((n-2) f^{(0-14)}(n-1) d^{(0-1)} n s^2\) General electronic configuration of lanthanoids is [Xe] \(4 f^{1-14} 5 d^{0-1} 6 s^2\) and actinoides is \([\mathrm{Rn}] 5 f^{1-14} 6 d^{0-1} 7 s^2\) So, \(4 f\) and \(5 f\)…