Question

the atomic radii of Cl,I andBr are 99,133 and 144 pm respectively. explain

Answer 1

Answer:

PERIODIC PROPERTIES OF ELEMENTS

Explanation:

As we move top to bottom across the group the ATOMIC RADII increases..This is becoz increase in the number of shells and decrease in EFFECTIVE NUCLEAR CHARGE..Now , the distance between the nucleus and the electron increases the atomic radii automatically  increases ...THUS THESE PERIODIC PROPERTIES DECIDES THE ATOMIC RADII...

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