MCQ
For a $p -$ block element, its $3d, 3s, 3p$ and $4s$ orbitals are completely filled and the differentiating electron goes to the $4p$ orbital. The element should have its atomic number in the range
- A$13 - 18$
- B$21 - 26$
- ✓$31 - 36$
- D$49 - 54$
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