Question

Which element has the maximum electron affinity?
(1) Mg
(2) Na
(3) AI
(4) S​

Answer 1

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✳ Which element has the maximum electron affinity?

(1) Mg

(2) Na

(3) AI

(4) S

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Option 4) .S

Sulphur is a non-metal. Non-metals have a higher electron affinity than metals & sulphur is a non-metal.

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⭐ The amount of energy released by a substance while adding an electron to a neutral atom to form an anion is known as Electron Affinity .

• If we move left to right across a period the electron affinity is increased. The period occurs because of increased nuclear attraction.

• The electron affinity should decrease if we move downward because the electron is being added & get increased away from an atom of a particle .

Electron Affinity = 1 / atomic size

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Answer 2

Element with most high electron affinity is Sulphur

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