The correct order of increasing energy of atomic orbitals is

The correct order of increasing energy of atomic orbitals is
  1. $5 \mathrm{p} < 4 \mathrm{f} < 6 \mathrm{~s} < 5 \mathrm{~d}$
  2. $5 \mathrm{p} < 6 \mathrm{~s} < 4 \mathrm{f} < 5 \mathrm{~d}$
  3. $4 \mathrm{f} < 5 \mathrm{p} < 5 \mathrm{~d} < 6 \mathrm{~s}$
  4. $5 p < 5 d < 4 f < 6 s$

Solution

According to Aufbau principle electron are filled in various atomic orbitals in the
increasing order of energy: $1 \mathrm{~s} < 2 \mathrm{~s} < 2 \mathrm{p} < 3 \mathrm{~s} < 3 \mathrm{p} < 4 \mathrm{~s} < 3 \mathrm{~d} < 4 \mathrm{p} < 5 \mathrm{~s} < 4 \mathrm{~d} < 5 \mathrm{p} < 6 \mathrm{~s} < 4 \mathrm{f}$ $ < 5 \mathrm{~d} < 6 \mathrm{p} < 7 \mathrm{~s}$ /

Asked in: JEE-TOPICTESTS-CHEMISTRY

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