what is oxidation number?
Answers
Answer:
Oxidation number, also called oxidation state, the total number of electrons that an atom either gains or loses in order to form a chemical bond with another atom.
Rules:
Rules for Assigning Oxidation Numbers
The convention is that the cation is written first in a formula, followed by the anion. ...
The oxidation number of a free element is always 0. ...
The oxidation number of a monatomic ion equals the charge of the ion. ...
The usual oxidation number of hydrogen is +1.
Purpose:
Oxidation Numbers. It is often useful to follow chemical reactions by looking at changes in the oxidation numbers of the atoms in each compound during the reaction. Oxidation numbers also play an important role in the systematic nomenclature of chemical compounds.
Formula:
Its oxidation level is the sum of its nuclear charge (atomic number) and the its electronic charge; 6+ (-10) = -4. The oxidation level of each hydrogen atom is 1 + (0) = +1. Note that the sum of the oxidation levels of all of the atoms in the molecule equals zero.
Sum:
The sum of the oxidation numbers for all atoms in a neutral compound is equal to zero, while the sum for all atoms in a polyatomic ion is equal to the charge on the ion.
Explanation:
please mark me as Brainlist.