Which of the following statements about the periodic trend of atomic radius is/are true? i. atomic radius decreases from left to right across a period because zeff increases. ii. atomic radius increases from left to right across a period because the number of valence electrons increases. iii. atomic radius increases from top to bottom in a group because the number of electron shells increases. 1. i only 2. i and iii only 3. ii and iii only 4. ii only
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Which of the following statements about the periodic trend of atomic radius is/are true? i. atomic...
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