Which one of the following arrangements repre | vedclass

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

Question

(D) The electron gain enthalpy $(\Delta_{eg}H)$ generally becomes more negative as we move from left to right across a period due to an increase in ef

Vedclass · Accepted Answer

$Ca < Al < C < O < F$

Vedclass · Answer

(D) The electron gain enthalpy $(\Delta_{eg}H)$ generally becomes more negative as we move from left to right across a period due to an increase in effective nuclear charge.It becomes less negative as we move down a group due to an increase in atomic size.Comparing the elements:$1$. $Ca$ (Group $2$,Period $4$): It has a very low electron affinity,often positive or slightly negative.$2$. $Al$ (Group $13$,Period $3$): It has a small negative value.$3$. $C$ (Group $14$,Period $2$): It has a more negative value than $Al$.$4$. $O$ (Group $16$,Period $2$): It has a more negative value than $C$.$5$. $F$ (Group $17$,Period $2$): It has the most negative electron gain enthalpy among these elements.Therefore,the correct order from least negative to most negative is: $Ca < Al < C < O < F$.

Which one of the following arrangements represents the correct order of least negative to most negative electron gain enthalpy for $C, Ca, Al, F$ and $O$?

Similar Questions

Arrange $N$,$S$,$O$ and $F$ in order of decreasing electron gain enthalpy.

Among the options, the element with the highest electron gain enthalpy is

Which of the following elements has a positive electron gain enthalpy?

Given below are two statements:
Statement $I$: Fluorine has most negative electron gain enthalpy in its group.
Statement $II$: Oxygen has least negative electron gain enthalpy in its group.
In the light of the above statements,choose the most appropriate from the options given below.

Which element has the highest electron gain enthalpy?

Vedclass Test Series

Exam Paper Generator

Online Exam Module