Question

Noble gases have more positive electron gain enthalpy. Why​

Answer 1

Answer:

It is affected by the size of the atom which increases down the group. ... Thus, in case of noble gases, where it resists the addition of electrons, extra energy is required in order to force the electron to bind to the stable atom. Therefore, making the electron gain enthalpies positive.

Answer 2

Answer:

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Explanation:

The noble gases present in the group 18 of periodic table, have electronic configuration ns2np6. ... Thus, in case of noble gases, where it resists the addition of electrons, extra energy is required in order to force the electron to bind to the stable atom. Therefore, making the electron gain enthalpies positive.

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