Question

Why are electron affinities of noble gases zero?

Answer 1

hey

Explanation:

Electron affinity of an element is the energy released when an element in the gas phase gains an extra electron to form an anion. Noble gases have a completely filled valence shell and does not require any extra electron to become stable and so has a zero electron affinity.

Answer 2

$\huge\underline\mathfrak\purple{Answer}$

Electron affinity is defined as the energy released by an atom when it accepts electron in gaseous state .

Noble gases have fully filled octet , so they don't require to gain electrons .

Hence , they have zero affinities .

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