If an element can have four values of spin quantum numbers and rest of the quantum no. are same, which of the following statement would be incorrect :-

Options

A. Be would have been in the first period of P.T.
B. The total no of elements in 2nd period would have been 12
C. There would have been 36 elements in 4th period
D. Number of periods would have been less than the no. of periods present in the modern P.T.

Answer

B

Explanation

If element can have four value of spin quantum number so one orbital can contain 4 electrons.