Can someone pls explain what is an oxidation number and how to acquire it in compounds also if there is time mention the rules.....whoever answers the best,I will mark as brainiest answer!!
Answers
Answer:
Oxidation number is the total number of electrons that an atom either gains or loses in order to form a chemical bond with another atom .
RULES :
1. The convention is that the cations is written first in a formula , followed by anion.
2. The oxidation number for a free element is always 0
3. The oxidation number of a monatomic ion eguals the charges of the ion.
4. The usual oxidation number of hydrogen is +1 .The oxidation number of hydrogen is -1 in the compounds containing elements that are less electronegative than hydrogen.
5. The oxidation number of oxygen in compounds is usually -2.
6. The oxidation number of a group 1A element in a compound is +1.
7. The oxidation number of a group 2A element in a compound is +2.
8. The oxidation number of a group 7A element in a compound is -1, except when that element is combined with one having higher electronegativity.
9. The sum of the oxidation numbers of all the atoms in a neutral compound is 0.
10. The sum of the oxidation numbers in a polyatomic ion is equal to the charge of the ion.