The Average O.S. of Oxygen = +2/3
No, the oxidation number of oxygen in ozone (O3) is -2/3, while in oxygen (O2) it is 0. In ozone, one oxygen atom has an oxidation number of -1 and the other two have an oxidation number of 0, resulting in an average oxidation number of -2/3.
Though it is very reactive, the oxidation number of ozone (O3) is zero: it is the tri-atomic form of elemental oxygen. The same applies to the di-atomic O2 molecule.
THe oxidation number for 'O3' is zero(0). O3 is ozone, and each oxygen atoms forms two single bonds with each of the other oxygens, forming a triangular arrangement.
Bromine oxidation causes ozone depletion. Bromine utilizes the oxygen from ozone to deplete it.
ozone
See "What is the ozone layer?"
Ozone has three atoms, oxygen has only two.
to my own understanding ozone does not have an atomic number
Oxygen is different in the number of atoms from ozone. Oxygen contains 2 atoms while ozone has 3.
There are three atoms in an ozone molecule: one oxygen atom in the center and two oxygen atoms on the sides.
Oxidation numbers are an invention of chemists; they are simply an accounting scheme that helps chemists to keep track of things in a redox reaction. There are several different ways to assign oxidation numbers in ozone. The only fixed point that all would agree on is that the sum of oxidation numbers on the three atoms must come to zero. Argument 1: All 3 atoms are oxygen, so they all have the same electronegativity, so the oxidation numbers must be 0,0, and 0 Argument 2: When writing the formula of ozone and trying to obey the rules of valence, you have to use formal charge. The formula could be written O=O(+)-O(-) In this case the oxidation numbers must be assigned as 0,+1, and -1 Argument 3: The formulation of argument 2 is correct BUT both "end" oxygen atoms are in symmetrically identical environments, and the formula written above is just one of two resonance structures. The symmetry of the molecule must be recognised, and so the oxidation numbers are -1/2 , +1, and -1/2 You can find professional chemists who will argue quite strongly for any one of these three assignments. None of them is really "right" or "wrong". It is all a matter of how you want to do your accounting. (But just sit back and nod wisely if you find a chemist who is arguing passionately for a particular assignment).
Ozone is a tri oxygen molecule. While the ozone layer is formed by the collection of large number of ozone molecules.