Electronic Configuration Flashcards
1
Q
What is the maximum number of electrons in the first shell?
A
2 electrons
2
Q
What is the maximum number of electrons in the second shell?
A
8 electrons
3
Q
What is the Aufbau Principle?
A
Electrons fill orbitals in order of increasing energy levels.
4
Q
What is Hund’s Rule?
A
Electrons fill degenerate orbitals singly before pairing.
5
Q
What is the Pauli Exclusion Principle?
A
No two electrons in an atom can have the same four quantum numbers.
