Question

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Along the period from left to right atomic radius of the elements decrease whereas along the group, from the top to bottom the atomic radius increase.

how it is? pls say me tha crt reason for this...


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Answer 1

Answer:

Atomic Radius to right in a radius decreases while going to left to right in a period.This is because when we move left to right in a period atomic number increases thus the valence electron feels more attraction towards the nucleus.thus size deceases.

Also effective nuclear charge increases due to which size decreases.

Explanation:

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Answer 2

Answer:

Atomic Radius to right in a radius decreases while going to left to right in a period.This is because when we move left to right in a period atomic number increases thus the valence electron feels more attraction towards the nucleus.thus size deceases.

Also effective nuclear charge increases due to which size decreases.