Q4.
CH
8. Following are some statements about modern periodic table
i) It consists of s, p, d and f blocks
ii) The energy levels filling order in 6th period is 6s, 4f, 5d and 6p
ii)IIIB group contains maximum number of elements
1) only i & ii are correct 2) only i is correct
3) only ii & iii are correct 4) all are correct
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3)2 hope it is helpful for you
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