Question

Phosphorus has the oxidation state of +3 in?

Answer 1

Phosphorus$\left(\mathrm{P}\right)$:

• Phosphorus has atomic number 15 and is a member of 3^rd period of the periodic table.
• The electronic configuration of Phosphorus is: ${}_{15}{}^{ }\mathrm{P}:1{\mathrm{s}}^2,2{\mathrm{s}}^2,2{\mathrm{p}}^6,3{\mathrm{s}}^2,3{\mathrm{p}}^3$
• Phosphorus can take $3$ electrons as well as it can donate $3$ electron in a reaction. so it has an oxidation state of $-3\mathrm{and}+3$ respectively.
• It can have a +3 oxidation state when it shares its three electrons with the atoms more electronegative than it.
• Phosphorus has $+3$ oxidation state in Phosphorus acid $\left({\mathrm{H}}_3{\mathrm{PO}}_3\right)$ also in Phosphorous trichloride (${\mathrm{PCl}}_3$).