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Question: Answered & Verified by Expert
The number of radial nodes in $3 s$ and $2 p$-orbitals, respectively are
ChemistryStructure of AtomTS EAMCETTS EAMCET 2021 (06 Aug Shift 1)
Options:
  • A 2 : 2
  • B 2 : 0
  • C 0 : 0
  • D 3 : 2
Solution:
2911 Upvotes Verified Answer
The correct answer is: 2 : 0
The number of radial nodes of $3 s$ and $2 p$ orbitals are 2 and 0 respectively.
Number of radial nodes $=n-l-1$
For $3 s$ orbital, number of radial nodes
$$
=3-0-1=2
$$
For $2 p$ orbital, number of radial nodes
$$
=2-1-1=0
$$

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