In which of the following,elements are correc | vedclass

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

Question

(A) The second ionisation enthalpy involves the removal of an electron from the $M^+$ ion. The electronic configurations of the ions after the first i

Vedclass · Accepted Answer

$O > F > N > C$

Vedclass · Answer

(A) The second ionisation enthalpy involves the removal of an electron from the $M^+$ ion. The electronic configurations of the ions after the first ionisation are:$F^+: 1s^2 2s^2 2p^4$$O^+: 1s^2 2s^2 2p^3$$N^+: 1s^2 2s^2 2p^2$$C^+: 1s^2 2s^2 2p^1$$O^+$ has a stable half-filled $2p^3$ configuration,which makes the removal of the second electron more difficult compared to $F^+$. Thus,the second ionisation enthalpy of $O$ is higher than that of $F$. The overall decreasing order is $O > F > N > C$.

In which of the following,elements are correctly arranged in the decreasing order of their second ionisation enthalpies?

Similar Questions

Which among the following orders of second $IP$ (Ionization Potential) is correct?

In comparison to boron,beryllium has

The second ionisation potential of $Li, Be,$ and $B$ follows the order:

Starting from the $1^{st}$,the successive ionization potentials of an element are respectively $5.98, 18.8, 28.4, 120.1, 154 \ eV$. The element is

The first ionization potential $(IP)$ of $Be$ $(Z=4)$ is higher than which of the following elements?
$(a) B (Z=5)$
$(b) Mg (Z=12)$
$(c) Li (Z=3)$
$(d) Al (Z=13)$
$(e) K (Z=19)$

Vedclass Test Series

Exam Paper Generator

Online Exam Module