Atomic Orbitals and Electron Configuration Flashcards
What is the principle quantum number?
(n) the shell the electron is found in
What is the Angular Momentum Quantum Number?
(l) The shape of the orbital that the electron is found in
What is the Magnetic Quantum Number?
(mL) The orientation in space of the atomic orbital
What is the Spin Quantum Number (s)
(s) If two electrons are in the same subshell, they are spinning in opposite directions
How many orbitals does an s subshell have?
1
How many orbitals does a p subshell have?
3
How many orbitals does a d subshell have?
5
What are the two options for the spin quantum number?
+1/2 and -1/2
What is Pauli’s Exclusion Principle?
No two electrons in the same atom can have the same set of four quantum numbers
What is the Aufbau Principle?
Electrons fill the orbitals in order of increasing energy.
What is Hund’s Rule?
When degenerate orbitals are available, electrons fill each orbital singly and with parallel spins before pairing up.
What is it called when orbitals have the same energy?
Degenerate
