The chemical formula for phosphorus trifluoride is PF3.
The chemical formula for red phosphorus is P4.
The chemical formula for phosphorus pentiodide is PI5.
The chemical formula for phosphorus sulfide is P2S5.
Red, yellow and black phosphorus have the same emperical formula P4.
The chemical formula for phosphorus mononitride is PN.
The chemical formula for boron is B, while the chemical formula for phosphorus is P.
The chemical formula for phosphorus acid is H3PO3.
The chemical formula for phosphorus trifluoride is PF3.
The chemical formula for red phosphorus is P4.
The chemical formula for phosphorus triiodide is PI3.
The chemical formula for phosphorus hydrogen is PH3.
The chemical formula for phosphorus pentiodide is PI5.
There is no "formula" for "calcium and phosphorus". The symbol for calcium is Ca; the symbol for phosphorus is P. You'd have to specify an actual compound in order to get a formula.
The chemical formula for sulfur is S and for phosphorus is P.
The chemical symbol (not formula) of phosphorus is P.
The chemical formula for phosphorus sulfide is P2S5.