College Chemistry Quiz
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ATOMIC STRUCTURE & PERIODICITY
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Which statement about electron configurations is correct?
A
The 3d orbitals are filled before the 4s orbital
B
Atoms always have the same number of protons and electrons
C
All atoms follow the aufbau principle without exception
D
The maximum number of electrons in any d subshell is 10
E
Hund's rule only applies to p orbitals
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