CHE 131 Study Guide - Comprehensive Midterm Guide: Ionic Compound, Nonmetal, Alkaline Earth Metal

• School: Stony Brook University
• Department: Chemistry
• Course: CHE 131
• Professor: Benjamin Hsiao, Jiangyong Jia, Roy Lacey

Document Summary

Th , 2016: properties of matter, matter changes & energy associated with the change, composition, structure, properties, matter: molecules, atoms, sub-atomic particles, chemical properties: reactions btw substances, physical properties: observed w/o changing into another substance (i. e. Errors reflected in # of digits reported for measurement a. ii. Nd , 2016: pure substances, element: simplest kind of material with unique physical and chemical properties, compound: substance that consists of two or more elements linked together in definite proportions b. i. Th , 2016: compounds, unique & defined chemical structure, fixed ratio of atoms held together in defined spatial arrangement by chemical bonds c, types of compounds d. i. Metal + metal = metal compound: bond types e. i. Molecular compounds: composed of atoms held together by covalent bonds e. ii. Ionic compounds: composed of positively & negatively charged ions held together by electrostatic attraction e. ii. 1. E = (q1q2)/d q = charges d = distance e. iii. Metallic bonds: electron sea ; free electrons; mobile electrons.