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NEETChemistryStructure of Atom

An electron in an atom is characterized by the quantum numbers n=5 and l=3 . Which of the following correctly identifies the subshell notation and the number of angular nodes for this electron?

Options

  1. A5f subshell and 3 angular nodes
  2. B5f subshell and 5 angular nodes
  3. C5d subshell and 2 angular nodes
  4. D5f subshell and 2 angular nodes

Correct answer

A. 5f subshell and 3 angular nodes

Step-by-step solution

The principal quantum number n=5 indicates the fifth main shell. The azimuthal quantum number l=3 corresponds to the f subshell (since l=0 for s , l=1 for p , l=2 for d , and l=3 for f ). Thus, the subshell notation is 5f . The number of angular nodes for any orbital is given directly by its azimuthal quantum number ( l ). Since l=3 , the number of angular nodes is 3 . Answer: 5f subshell and 3 angular nodes

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