The graph between


  1. $3 s$ orbital

  2. $2 s$ orbital

  3. $1 s$ orbital

  4. $2 p$ orbital

Correct Option: , 2


The given probability density curve is for $2 s$ orbitaı due to the presence of only one radial node. $1 s$ and $2 p$ orbital do not have any radial node and $3 s$ orbital has two radial nodes. Hence, option (2) is correct.

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