1. Understand Oxidation Numbers
* Oxidation numbers represent the hypothetical charge an atom would have if all the bonds were ionic.
* Oxygen usually has an oxidation number of -2, except in peroxides.
2. Apply the Rules
* The sum of the oxidation numbers in a neutral compound is always zero.
* There are four phosphorus atoms (P) and ten oxygen atoms (O) in P₄O₁₀.
3. Set Up the Equation
Let 'x' represent the oxidation number of phosphorus.
(4 * x) + (10 * -2) = 0
4. Solve for x
4x - 20 = 0
4x = 20
x = +5
Therefore, the oxidation number of phosphorus (P) in P₄O₁₀ is +5.
