Recall that the quantum numbers that define an electron are:
• Principal Quantum Number (n): possible values for n are 1 to ∞
• Angular Momentum Quantum Number (l): possible values for l are 0 to n – 1
• Magnetic Quantum Number (ml): possible values for ml are the range of –l to +l
• Spin Quantum Number (ms): possible values for ms are either –1/2 (spin down) or +1/2 (spin up)
For each electron in a ground-state Beryllium atom, select the set of quantum numbers that represents it. Check all that apply.
a) n = 1, l= 0, ml= –1, ms= 1/2
b) n = 2, l= 0, ml= 0, ms= –1
c) n = 1, l= 0, ml= 0, ms= 1/2
d) n = 1, l= 0, ml= 0, ms= –1/2
e) n = 2, l= 0, ml= 0, ms= 1/2
f) n = 2, l= 1, ml= 0, ms= –1/2
g) n = 2, l= 1, ml= 1, ms= 1/2
h) n = 2, l= 0, ml= 0, ms= –1/2
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