What is electron gain enthalpy for noble gases?

Electron gain enthalpy of Noble Gas is almost Zero .

Do noble gases have negative electron gain enthalpy?

Electron gain enthalpy of noble gasses is positive.

Which noble gas has highest positive electron gain enthalpy?

Neon
Neon has the highest positive (+ 116) electron gain enthalpy.

Why is electron gain enthalpy positive?

A positive electron gain enthalpy is defined as the energy required to enter an electron into an atom. This means that when an element has completely filled orbital then it will be not be able to accept an electron easily. Hence, nitrogen will have positive electron gain enthalpy.

Why electron gain enthalpy of noble gases are positive while those of Mg and P are almost zero?

So, when we talk about the noble gases , they have completely filled shells so they have not any space to place an extra electron in their valence orbital and so the electron is placed in next higher energy level which requires a huge energy to be supplied and so the electron gain enthalpy is positive for noble gases.

What is positive and negative electron gain enthalpy?

e., a positive tendency , to gain electron, then conventionally , its electron gain enthalpy is said to be negative and if the atom is reluctant to gain an electron, i.e., it has a negative tendency to gain an electron and is forced to accept it, its electron gain enthalpy is positive.

Why do noble gases have zero electron gains?

Noble gases have the completely filled electronic configuration, thus, they do not need any further electron to complete their octet. Hence they are unwilling to get any outside electron. Thus, their electron gain enthalpy is zero.

Which has positive electron gain enthalpy?

Nitrogen has positive electron gain enthalpy whereas oxygen has negative.

Why do noble gases have zero Ege?

Noble gases have zero electron affinity values because they have stable electronic configuration and have no tendency to take an additional electron. Hence, no energy is released and their electron affinity is zero.

Why is noble gas electron affinity zero or zero?

Noble gas elements have completely filled outer-shell. Such electronic configurations are highly stable and as such noble gases find it difficult to accept electrons. Thus electron affinity of noble gas elements is zero.