We have to determine how many orbitals would exist in the n=1 level, in an alternate universe where the value of ℓ is from 0 to n.

To determine the number of orbitals, we have to first define the **quantum numbers**:

• **principal quantum number (n)** → energy level in orbitals and its value could be any positive integer starting from 1.

• **angular momentum quantum number (ℓ)** → (l) has to be at least 1 less than n, range of values from 0 up to (n-1). **In the alternate universe it will be 0 → n.**

• **magnetic quantum number (m _{ℓ})** → range of values from -ℓ to + ℓ.

• **spin quantum number (m _{s})** → has two values: +½ and -½.

Suppose that in an alternate universe, the possible values of l are the integer values from 0 to n (instead of 0 to n - 1). Assuming no other differences between this universe and ours, how many orbitals would exist in each level in the alternate universe?

n = 1

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