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The atomic radius tends to decrease across a pe... - SS3 Chemistry Inorganic Chemistry: Periodic Trends and Properties Question

The atomic radius tends to decrease across a period from left to right. This is mainly due to:

 

A

An increasing number of protons in the nucleus

 

B

Increasing the number of neutrons in the nucleus

 

C

Increasing number of energy levels

 

D

Decreasing the number of valence electrons

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Correct Option: A
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