The geometric arrangement of electron pairs around a given atom is determined principally by the tendency to minimize between the electron pairs.
Bonding and Molecular Structure Helium: Has 2 electrons, neutrons and protons Has 1s orbital and a closed shell Is a noble gas Pauling Electronegativity Fluorine is the most electronegative element. Hybridization sp❑ sp2 sp3 2 π ∂ π∂ ∂ 180˚ 120˚ 109˚ Resonance Structures Resonance structures are a way scientist “book keep” electrons in a molecule. Electrons can move to any bond in the molecule. They are never a perfect representation of where the electrons are. More accurately each oxygen in CO3 has a charge of -2/3. One more example: CH3-CH-CH=CH2↔CH3CH=CHCH2