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Electronegativity

Which element...

Question

Which element would be expected to have highest electro-negativity :

Boron, Aluminium, Gallium, Indium, Thallium

A

Boron

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B

Aluminium

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C

Indium

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D

Thallium

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Solution

The correct option is A Boron
Electronegativity of an element decreases down the group.

Thus, the first element of group i.e., Boron has the highest electronegativity.

Hence, option $(A)$ is correct.

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