CHEM 1A03 Study Guide - Final Guide: Alkaline Earth Metal, Alkali Metal, Oxidation State

• School: McMaster University
• Department: Chemistry
• Course: CHEM 1A03
• Professor: Adam Hitchcock

Document Summary

Group 18= noble gases: transition metals (groups 3-12) & main-group elements (groups 1, 2, 13-18) In peroxides, (-o-o- bond), it is -1: halogens are typically -1, non-metals are typically negatively charged when in a compound with metalloids and metals. Metals are positively charge when in a compound with metalloids and non- metals: some elements have multiple oxidation numbers. Cl has an oxidation number of +3: metals are positively charged & non-metals are negatively charged, metalloids can be positively or negatively charged depending on if they are in a compound with metals or non-metals. Ions can have multiple oxidation states, so, it is stated by using brackets and roman numerals. N2o3 dinitrogen trioxide: polyatomic ions, oxyacids/ polyatomics. * in quizzes, if it gives the % yield, multiple the % yield to the theoretical yield you get through calculations. Ionic compounds: repeating lattices (3-d, the smallest ratio of the anions and cations is used in the formula and balances out the charge.