As you move across the periods from left to right on the periodic table, the atomic radius decreases. why?
a. the valence electrons are located further away from the nucleus so they experience less effective nuclear charge.
b. the effective nuclear charge increases and pulls the valence electrons closer to the nucleus.
c. the valence electrons are found in higher energy levels.
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As you move across the periods from left to right on the periodic table, the atomic radius decreases...
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