Question

50 POINTS.....

Which of the following will have the most negative electron gain enthalpy and which has the least negative value?
P, S, Cl and F. Justify your choice.
.
.
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Answer 1

Answer:

50 POINTS.....

Which of the following will have the most negative electron gain enthalpy and which has the least negative value?

P, S, Cl and F. Justify your choice.

.

Explanation:

Electron gain enthalpy generally becomes more negative across a period as we move from the left to the right. Within a group,m electron gain entahlpy becomes less negative down a group. However, adding an electron to the

-orbital leads to the greater repulsion than adding an electron to the larger

-orbital. Hence, the element with the most negative electron gain enthalpy is chlorine, and the one with the least negative electron gain enthalpy is phosphorus.

Answer 2

Answer:

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Explanation:

Hence the element with most negative electron gain enthalpy is chlorine; the one with the least negative electron gain enthalpy is oxygen.