CHEM 130 Lecture Notes - Lecture 12: Valence Electron, Noble Gas, Lone Pair

• School: U of M
• Department: Chemistry
• Course: CHEM 130
• Professor: Charles Mc Mory

Document Summary

Localized electron (le) model: a molecule us composed of atoms that are bound together by sharing pairs of electrons using the atomic orbitals of the bound atoms. Bonding pairs: found inn the space between two atoms. We use this localized electrons model to construct lewis models. The is an example of ionic bonging system: noble gas con guration is generated by transfer of electrons from metal to non metal. Covalent bonds: noble gas con guration ( lled valence shell) is achieved based on electrons sharing. H2 has one valence electron, when they go together they are shared by two valence electrons. Each one now has 2 electrons in valence shell if you count the valence electrons. each h has the he" con guration if you include shared electrons. The octet rule: elements form stable molecules when surrounded by 8 electrons (achieving a.