In which of the following arrangements is the | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) Let us analyze each option:$1$. $Al^{3+}, Mg^{2+}, Na^{+}, F^{-}$ are isoelectronic species with $10$ electrons. For isoelectronic species,ionic s

Vedclass · Accepted Answer

$B < C < N < O$ $(1^{st} 	ext{ } IP)$

Vedclass · Answer

(B) Let us analyze each option:$1$. $Al^{3+}, Mg^{2+}, Na^{+}, F^{-}$ are isoelectronic species with $10$ electrons. For isoelectronic species,ionic size increases as the nuclear charge decreases. The order $Al^{3+} $2$. The first ionization potential $(IP)$ generally increases across a period. However,$N$ has a stable half-filled $p$-orbital $(2p^3)$,making its $IP$ higher than $O$. The correct order is $B $3$. Electron affinity $(EA)$ generally increases across a period,but $Cl$ has a higher $EA$ than $F$ due to inter-electronic repulsion in the small $2p$ subshell of $F$. The order $I $4$. Metallic character increases down a group as ionization energy decreases. The order $Li < Na < K < Rb$ is correct.

In which of the following arrangements is the order $NOT$ according to the property indicated in the bracket?

Similar Questions

Select the correct order for the elements $B, C, N, O$:

Which one of the following sets of ions represents a collection of isoelectronic species?

Which of the following orders is incorrect?

Elements having atomic numbers $33, 47, 53, 59, 68, 74, 82$ are present in which blocks of the periodic table?

Which of the following sets is incorrect?

Vedclass Test Series

Exam Paper Generator

Online Exam Module