Electron Configuration

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Presentation transcript:

Electron Configuration

Time line of atomic model

Quantum Mechanical Model Devised using math: Schrodinger equation Determines the allowed energies an electron can have Energy is released at specific amounts Allows one to predict where an e- is most likely found. These areas are described by their energy level and orbital.

Quantum Mechanical model - Energy levels are like rungs of a weird ladder

Orbitals: region of space where an e- is Like a room in a house Weird shapes

Rules of Electron Configuration (where the e- is) Aufbau Principle: fill lowest energy first Pauli Exclusion Principle: 2 e-/orbital. e- have opposite spins. Hund’s Rule: For orbitals with equal energy: e- go into each orbital and then start doubling up.

The following is an analogy between a frat house and an electron cloud The following is an analogy between a frat house and an electron cloud. Fill in the following : 1st Floor HOUSE ELECTRON CLOUD _____ Story _____ Energy Level _____Room types (fix on other slides) _____ Sublevels ____________ (type of room & how many) __________ orbitals ________ people total in this story _______ electrons total in this level

2nd Floor

3rd Floor

4th floor

Hydrogen Helium Lithium Beryllium Boron Carbon Sulfur Titanium