MCQ
Choose the incorrect order?
- A$Li > O > F$ ( $IE_2$ order)
- B$Mg < S < Cl$ ( $EA$ order)
- C$I > Br > N > O > F$ (Size)
- ✓$Na < K < Ca$ $(Z_{eff})$
✓
Answer
Correct option: D.
$Na < K < Ca$ $(Z_{eff})$
d
As per Slater's rule
As per Slater's rule
$\mathop {Li}\limits_{(1.3)} < \mathop {Na}\limits_{(2.2)} = \mathop K\limits_{(2.2)} < \mathop {Ca\,\,\,\,\,\,\,\,\,\,}\limits_{(2.85) \leftarrow {Z_{eff}}} $
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