# The number of orbitals associated with quantum numbers $n = 5, m_s = +1/2$ is: Option: 1 25 Option: 2 11 Option: 3 15 Option: 4 50

We have:

n = 5, ms = +1/2

Thus, the values of l are from 0 to (n-1)

l = 0 to 4

Thus, values of l are 5s, 5p, 5d, 5f, and 5g

Now, the total number of orbitals $= n^2 = 5^2 = 25$

Therefore, Option(1) is correct.

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