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(A) The tendency to gain an electron is related to electron gain enthalpy and electronegativity. Element $A$ $(1s^2 2s^2 2p^6)$ is Neon,a noble gas wi

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$A < C < B < D$

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(A) The tendency to gain an electron is related to electron gain enthalpy and electronegativity. Element $A$ $(1s^2 2s^2 2p^6)$ is Neon,a noble gas with a stable octet,so it has the least tendency to gain an electron. Element $C$ $(1s^2 2s^2 2p^6 3s^1)$ is Sodium,an alkali metal with a strong tendency to lose an electron,so it has very low electron gain tendency. Element $B$ $(1s^2 2s^2 2p^4)$ is Oxygen,which needs two electrons to complete its octet. Element $D$ $(1s^2 2s^2 2p^5)$ is Fluorine,which needs only one electron to complete its octet and is the most electronegative element,thus having the highest tendency to gain an electron. Comparing these,the order of increasing tendency to gain an electron is $A < C < B < D$.

Electronic configurations of four elements $A, B, C$ and $D$ are given below :
$(A)$ $1s^2 2s^2 2p^6$
$(B)$ $1s^2 2s^2 2p^4$
$(C)$ $1s^2 2s^2 2p^6 3s^1$
$(D)$ $1s^2 2s^2 2p^5$
Which of the following is the correct order of increasing tendency to gain electron :

Similar Questions

The correct order of electron affinity of $B, C, N, O$ is

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 of the following has the least electron gain enthalpy?

Would you expect the second electron gain enthalpy of $O$ to be positive,more negative,or less negative than the first? Justify your answer.

Which of the following arrangements for the three halogens $Cl$,$Br$,and $I$ when placed in the order of their increasing electron affinity is correct?

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Electronic configurations of four elements $A, B, C$ and $D$ are given below :$(A)$ $1s^2 2s^2 2p^6$$(B)$ $1s^2 2s^2 2p^4$$(C)$ $1s^2 2s^2 2p^6 3s^1$$(D)$ $1s^2 2s^2 2p^5$Which of the following is the correct order of increasing tendency to gain electron :