CHEM1831 Lecture Notes - Lecture 7: Single Bond, Electron Shell, Lewis Structure
9 Aug 2018
School
Department
Course
Professor
Document Summary
Ionic bond: form between atoms with very different electronegativities, strong electrostatic attraction between oppositely charged ions, e. g salt, may dissolve in water, salts are brittle because an external force can shear the ionic lattice thereby. Blood plasma - is the straw coloured liquid component that holds the blood cells in whole blood. It is a salt solution and makes up about 55% of the body"s total blood volume. Atp - adenosine triphosphate - 0. 2 moles in a human. 0 non-polar covalent < 0. 5 weakly polar covalent 0. 5 1. 0 moderately polar covalent 1. 0 . 1. 5 polar covalent 1. 5 <2. 0 borderline ionic covalent > 2. 0 mostly ionic. Bond order is the number of shared electron pairs between two atoms. Resonance: where exchanging single and double bonds (or single and triple) can give an identical molecule, the true structure lies between these extremes that are called cannonical structures, resonance leads to delocalised bonding. Nitrous oxide - laughing gas -n2o used in anaesthetic.
