oxidation numbers
Oxidation numbers are another way to count electrons in a chemical change. Oxidation numbers can only be added to a compound if the compound Is ionic on the periodic table. When two nonmetals are together they make a covalent compound, which are always going to be negative. It is impossible for a negative oxidation number to be on every element, the most electronegative have the negative number and the least do nit get a negative. There are rules to determine oxidation numbers:
1 If there is any unadded element, it has to be 0
2 If there is a monatomic it is equal t its charge (Positive or negative)
3 Oxygen will always have a -2 oxidation number, unless it is water then it has a -1 oxidation number
4 Hydrogen is +1 oxidation number unless it bonds with a metal or polyatomic ion
5 When oxidation numbers are complete they must equal 0
1 If there is any unadded element, it has to be 0
2 If there is a monatomic it is equal t its charge (Positive or negative)
3 Oxygen will always have a -2 oxidation number, unless it is water then it has a -1 oxidation number
4 Hydrogen is +1 oxidation number unless it bonds with a metal or polyatomic ion
5 When oxidation numbers are complete they must equal 0