MCQ
Which of the following atoms has minimum covalent radius
- A$B$
- B$C$
- ✓$N$
- D$Si$
✓
Answer
Correct option: C.
$N$
c
As we move along a period radius decreases and as we move down the group, radius increases.
As we move along a period radius decreases and as we move down the group, radius increases.
Hence, $B (5)\,>\, C (6)\,>\, N (7)$.
Also, $\left( r ^{ n } \propto \frac{1}{Z}\right.$ along a period)
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