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16. in modern periodic table..cus we move from left to right along the period, the atomic size of the elements .al increasesby does nol chondee decreasesdzfirst_encilases and then decreases. |
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Answer» ong>Answer: Atomic size usually increases on goning down in a group as the number of shells also increases .But,it DECREASES on moving left to right ACROSS the period due to the shrinking of ATOM because of INCREASING nuclear force |
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