MCQ
The electronic configuration of halogen is
- A$n{s^2}n{p^6}$
- B$n{s^2}n{p^3}$
- ✓$n{s^2}n{p^5}$
- D$n{s^2}$
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(at. mass $Ag =108; Br = 80$)
$(a)$ Effective nuclear charge for nitrogen is $3.90$
$(b)$ $IP$ of $Ne$ is more than $Na^+$
$(c)$ Order of electron negativity $sp > sp^2 > sp^3$
$(d)$ Order of acidic character $NH_3 < PH_3 < AsH_3$