16 questions
The second shell from the center of an atom can hold how many electrons?
2
6
8
18
Each orbital has at most two electrons that spin in opposite directions.
Pauli exclusion principle
aufbau principle
electron configuration
Hund's rule
Which of the following states that a single electron occupies each orbital within a subshell before electrons begin pairing?
Hund's rule
aufbau principle
pauli exclusion principle
lewis rule