Question

9) While moving down a group in the periodic table,
the size of the atom generally :
A) decreases
B) increases
C) remains constant
D) first increases for first three elements and then
decreases.

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Answer 1

Answer:

B. INCREASES

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Answer 2

Answer:

while moving down the group there is addition of new shell and force between electron and nucleus becomes weaker thus the atomic radius increases

while moving down the