Question

what is electric ethnalpy ❤❤❤❤❤ipy svam hvm​

Answer 1

$\mathfrak\pink{Electron \: Enthalpy}$

Electron gain enthalpy is sometimes also referred to as Electron affinity although there is a minute difference between them. Electron gain enthalpy is defined as the amount of energy released when an electron is added to an isolated gaseous atom. During the addition of an electron, energy can either be released or absorbed.

Let us consider two metals Magnesium and Sodium. Metals lose electrons to obtain the inert gas configuration. Hence, Sodium and Magnesium atoms will not add electrons easily. Some external energy is needed to add the electron in their atoms. Hence, electron gain enthalpy for metals will be positive. Magnesium atom is small, so the attractive nuclear force will be more on the electrons whereas the size of Sodium atom is comparatively larger than Magnesium atom. Hence, the nuclear force applied on the electrons in the case of Sodium will be less.

Electron Gain Enthalpy

So, we will apply energy in both the cases but the amount of energy needed in the case of Magnesium will be lesser than that of Sodium because of the help we are receiving from the nuclear charge of Magnesium in attracting the electron. So the electron gain enthalpy in both the cases will be positive, but the atom with a smaller size will have lesser positive electron gain enthalpy. So we can conclude that electron gain enthalpy depends on atomic radius and the nuclear charge.

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Answer 2

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