Atomic Radius Trend Across A Period
Which of the following explains why atomic radius decreases as one moves from left to right across a period on the periodic table?
A
As the number of neutrons increases, the surrounding electrons are drawn more tightly inward.
B
As the number of electrons increases, they draw themselves more tightly toward the nucleus.
C
As the mass of the nucleus increases, the surrounding electrons are drawn more tightly inward.
D
As the number of protons increases, the surrounding electrons are drawn more tightly inward.
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