1.

Suppose the universe were different than it is and that the electron spin quantum number could only have of a value of +(1)/(2) . Assume that the Pauli's exclusion principle still holds and that the value of other quantum numbers were the same, which atomic number could correspond to the "noble gases" in this universe?

Answer»

1,5,9...
2, 10, 18...
3,27,54...
1,4,8...

Solution :In this CASE , the numberof elements in a PERIOD would be justhalfof the numberpresentnow . Hence, correspodingatomicnumbers wouldbe : 1,5,9…….. (HALFOF THEPRESENT atomicnumber).


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