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Quantum numbers, orbitals, nodes, electronic configuration
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Single correct option
Difficulty 1 of 3
as196
The principle that no two electrons in an atom can have the same set of all four quantum numbers is called
A
Hund's rule of maximum multiplicity
B
Aufbau principle
C
Heisenberg uncertainty principle
D
Pauli exclusion principle
Answer: D
This is the statement of the Pauli exclusion principle. It limits an orbital to two electrons, which must have opposite spins (
m
s
=
+
1/2
and
−
1/2
).
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