If period number and group number of any representative element(s) are same then which of the following statement is incorrect regarding such type element(s) in their ground state? (Period number and

Question

If period number and group number of any representative element(s) are same then which of the following statement is incorrect regarding such type element(s) in their ground state? (Period number and group number are according to modern form of periodic table)

Prashant Kotian · Accepted Answer

Correct answer: C. Possible elements: H, Be. Period number 1, 2. Group number 1, 2. Electronic configuration 1s1, 1s2 2s2.

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