Quantum Mechanical Model Flashcards
what do Louis De Broglie discover
It was previously understood: that light had wave particle duality
He determined electrons could behave like waves
what is wave particle duality
something can behave like a wave or like a particle
what did Schrodinger develop
a mathematical equation to describe a new model for electrons in the atom
what did Heisenberg discover
*The Uncertainty Principle
-impossible to tell the position and speed of an atom at any given time
*Electrons cannot travel in 2D Orbits
What is the Quantum Mechanical Model
3D orbitals are probability electron clouds - where an electron is most likely to be
what determines orbital size and shape
-energy level of e-
-the number of e- in the atom
how many types of s orbitals are there and what is their shape
3 types
circles
how many types of d orbitals are there and what is their shape
5 types
clovers
how many types of p orbitals are there and what is their shape
3 types- Px Py Pz
what is Alfbau’s Principle
each e- must go in lowest available energy orbital first
what is Pauli’s Exclusion Principle
-each orbital can hold max of 2e- and they must have opposite spins
what is Hund’s Rule
place one e- in what orbital of equal energy before pairing 2 together
