Question:

A certain orbital has no angular nodes and two radial nodes. The orbital is :

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Total nodes $= n - 1$. For 3s, $3 - 1 = 2$ total nodes, all of which are radial since $l=0$.
Updated On: Jan 21, 2026
  • 2s
  • 2p
  • 3s
  • 3p
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The Correct Option is C

Solution and Explanation

Step 1: Angular nodes $= l$. Since there are no angular nodes, $l = 0$. This identifies it as an s-orbital.
Step 2: Radial nodes $= n - l - 1$.
Step 3: Given radial nodes $= 2$, so $n - 0 - 1 = 2$.
Step 4: $n = 3$. The orbital is 3s.
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