Which of the following orders for ionisation | vedclass

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

Question

(B) The general trend for ionisation energy $(IE)$ increases across a period from left to right due to an increase in effective nuclear charge. Howeve

Vedclass · Accepted Answer

$B < Be < C < O < N$

Vedclass · Answer

(B) The general trend for ionisation energy $(IE)$ increases across a period from left to right due to an increase in effective nuclear charge. However,there are exceptions due to stable electronic configurations. $Be$ $(1s^2 2s^2)$ has a fully filled $2s$ orbital,making its $IE$ higher than $B$ $(1s^2 2s^2 2p^1)$. $N$ $(1s^2 2s^2 2p^3)$ has a stable half-filled $p$-orbital,making its $IE$ higher than $O$ $(1s^2 2s^2 2p^4)$. Therefore,the correct order is $B < Be < C < O < N$.

Which of the following orders for ionisation energy is correct?

Similar Questions

Ionization enthalpy of an atom is equal to

Which among the following elements has the lowest value of $IE_1$?

Which of the following elements has the lowest ionisation potential?

The correct order of $C$, $N$, $O$ and $F$ in terms of second ionisation potential is

The correct sequence of elements in decreasing order of first ionisation energy is

Vedclass Test Series

Exam Paper Generator

Online Exam Module