For an atom’s electrons, how many energy sublevels are present in the principal energy level n = 4?

In this question given concerning the atom's electron, the number of energy sublevels present in the principal energy level n = 4 is to be determined. For this matter, it should be remembered that the number of sublevels of a certain principal energy level is equal to n. For this item, the number of sublevels is also 4. That is s, p, d and f.

The sub levels in a energy level specified by 'n' is equal to n.e.g. energy level with n=4 has four sub levels. hope this helps!

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