CHE 131 Lecture Notes - Lecture 4: Ferrous, Sodium Oxide, Bicarbonate

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

Document Summary

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. Formula unit: smallest electrically neutral unit w/in crystal of compound: naming compounds, binary molecular/ covalent compounds a. i. First element then second element (using -ide) a. ii. Deca: 10 b: binary ionic compounds c. i. Na2o = sodium oxide: naming cations in ionic compounds d. i. Metals w/ more than 1 charge name of metal succeeded by valency in roman numerals or by using -ous (lowest valency) & -ic (highest valency) d. ii: naming anions in ionic compounds.