Quick Quantum question?

Question

1) How many different values of "l" are possible for an electron with principal quantum number n = 4?

*answer not 1 or -1. also answer must be an integer.

2) How many different quantum states are possible if the principal quantum number is n = 5?

*answer not 24. also answer be an integer.

*let me know if you need more information! thank you*

Answer 1

is s spin, and what is i

was i supposed to let you know telepathically?

are you sure it's not 1?