The correct order of electron gain enthalpy o | vedclass

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

Question

(B) The electron gain enthalpy is the energy released when an electron is added to a neutral gaseous atom. For the given elements,the values are: $N$:

Vedclass · Accepted Answer

$Al < N < O < Cl$

Vedclass · Answer

(B) The electron gain enthalpy is the energy released when an electron is added to a neutral gaseous atom. For the given elements,the values are: $N$: $+7 \ kJ/mol$ (positive due to stable half-filled $2p^3$ configuration) $O$: $-141 \ kJ/mol$ $Cl$: $-349 \ kJ/mol$ $Al$: $-43 \ kJ/mol$ Comparing the magnitudes,the order of electron gain enthalpy (most negative to least negative) is $Cl However,considering the standard convention where more negative values are considered 'higher' in terms of energy release,the order of increasing electron gain enthalpy is $Al < N < O < Cl$.

The correct order of electron gain enthalpy of $N$,$O$,$Cl$,$Al$ is

Similar Questions

Which of the following has the maximum electron gain enthalpy?

Which of the following is correct regarding the electron affinity of halogens?

$A = 1s^2\, 2s^2\, 2p^4$,$B = 1s^2\, 2s^2\, 2p^5$,$C = 1s^2\, 2s^2\, 2p^6$. $A, B$ and $C$ are atoms/anions of the same element. Which one is correct? (One of $A/B/C$ is a neutral atom)

The electron affinity values of elements $A, B, C$ and $D$ are respectively $-135, -60, -200$ and $-348 \ kJ \ mol^{-1}$. The outer electronic configuration of element $B$ is

Select the equations that represent an endothermic step.

Vedclass Test Series

Exam Paper Generator

Online Exam Module