# Chapter 4 Continued pg #3

darkeyez's version from 2016-10-26 08:17

## Section

Rules for Assigning Oxidation Numbers: Rule 1: The oxidation number of an element in its free(uncombined) state is ZERO. Rule 2: Oxidation number of a monatomic(1-atom) ion is the same as the charge on the ion. Rule 3: The sum of all oxidation numbers in a neutral compound is ZERO. Rule 4: The oxidation number of an alkali metal ion in a compound is (+1). The oxidation number of an alkali earth metal in a compound is (+2) charge. Rule 5: The oxidation number of Oxygen in a compound is (-2). Rule 6: The oxidation number of Hydrogen in a compound is (+1). Rule 7: The oxidation number of Flourine is ALWAYS (-1) FLO
Flourine(-1) Oxidation Number
Chlorine(-1) Oxidation Number
Bromine(-1) Oxidation Number
Iodine(-1) Oxidation Number