السؤال 105

Across one period, which statement gives the general atomic-radius trend from left to right?

It remains exactly constant.
It generally decreases.الإجابة الصحيحة
It changes with no broad direction.
It generally increases.

الشرح

Atomic radius generally becomes smaller across a period from left to right as increasing nuclear attraction draws the occupied electron region inward. Assuming it grows merely because atomic number rises ignores this stronger attraction within the same shell level.

الشرح

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