CHEM 1001 Lecture Notes - Lecture 2: Bond Length, Electron Affinity, Aufbau Principle

• School: Carleton University
• Department: Chemistry
• Course: CHEM 1001
• Professor: Bob Burk

Document Summary

Electron sharing: this is a type of bond between two atoms, whom are bound to other atoms by the sharing of electron density. There are two types of sharing of electrons; Even sharing (covalent: where electrons are evenly shared between atoms, everything is balanced; Uneven sharing (polar-covalent: where one atom is attracting electrons at a higher strength than other atoms. A higher net charge of one nucleus pulls the shared electrons closer to itself: electron density becomes distorted toward this nucleus, slightly negative (s-) and slightly positive (s+) sides of bond exist for polar-covalent bonds. The distance between the nuclei of the bonding atoms affects the bond, but the bonds are not stationary. That means that the larger an atoms is, but less of a strong bond there is, due to the fact that the nuclei is further away and thus magnetically attracts at a smaller level. Always moving/vibrating (being in a resonance state)