Let’s first define the quantum numbers.
• the 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)
▪ Each ℓ value corresponds to a subshell/sublevel:
How would you determine the quantum number, ml, for an element?
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