Question: Imagine a world in which all quantum numbers, except the l quantum number, are as they are in the real world. In this imaginary world,

Imagine a world in which all quantum numbers, except the l quantum number, are as they are in the real world. In this imaginary world, l begins with l and goes up to n (the value of the principal quantum number). Assume that the orbitals fill in the order by n, then l; that is, the first orbital to fill is for n = 1, l = 1; the next orbital to fill is for n = 2, l = 1, and so forth. How many elements would there be in the first period of the periodic table?

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