The given elements in each group are to be arranged in theorder of increasing electron affinity . Concept introduction: When an atom accepts an electron, energy is released and this is termed as electron affinity ( E A ). Electron affinity tends to increase along a period from going left to right, whileit tends to decrease down the group.

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Chapter 7, Problem 48QP

Interpretation Introduction

Interpretation:

The given elements in each group are to be arranged in theorder of increasing electron affinity.

Concept introduction:

When an atom accepts an electron, energy is released and this is termed as electron affinity (EA).

Electron affinity tends to increase along a period from going left to right, whileit tends to decrease down the group.

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