Imagine a universe in which the four quantum numbers can contain the same possible values as in our universe except that the angular-momentum quantum number l can have integral values of 0, 1, 2, ..., n+1 (instead of 0, 1, 2, ..., n?1).
1) Explain how many elements would be in the first two rows of the periodic table in this universe?
2) Explain what would be the atomic number of the element in the second row and fourth column?