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Q.
A trend which is common to elements of both the group $1^{\text {st }}$ and group $17^{\text {th }}$, on going from top to bottom
NTA AbhyasNTA Abhyas 2022
Solution:
A trend which is common to elements of both the group $1^{\text {st }}$ and group $17^{\text {th }}$, on going from top to bottom is that the ionization energy decreases since the atomic size increases.