Phosphorus has two valencies 3 and 5.
3 - in compounds such as PH3, PCl3, P4O6
5 - PCl5, P4O10
In terms of cordination, the "count" of all the atoms around a P atom it can have 2- 9 atoms around it. Examples are below:-
2 - in OPCH2
3 - in PH3
4 - in PO43-
5 - in PF5
6 - in PF6-
And in some phosphides where there bond is more ionic even higher coordination numbers are known:-
7 - in crystals of Ta2P
8 - in crystals of Hf2P
9 - Ti3P
PCl5, or phosphorus pentachloride, consists of one phosphorus atom and five chlorine atoms. Therefore, it has a total of six atoms.
There are 4 atoms - three lithium (Li) atoms and one phosphorus (P) atom.
Phosphorus trichloride has 3 chlorine atoms and 1 phosphorus atoms, so it has a total of 4 atoms.
Tribromide refers to a compound containing one atom of a central element and three bromine atoms. For example, in the case of phosphorus tribromide (PBr₃), there is one phosphorus atom and three bromine atoms, totaling four atoms. Therefore, a tribromide molecule typically consists of four atoms.
In phosphorus trichloride (PCl₃), the phosphorus atom is the central atom surrounded by three chlorine atoms. Phosphorus has five valence electrons, and each chlorine atom forms a single bond with phosphorus, using three of its electrons. This leaves two electrons as a lone pair on the phosphorus atom. Therefore, there is one lone pair on the phosphorus in PCl₃.
A phosphorus atom can form bonds with up to five atoms due to its valency of 5. This means that it can form up to five single covalent bonds with other atoms.
Phosphorus pentachloride (PCl5) contains 1 phosphorus atom and 5 chlorine atoms.
PCl5, or phosphorus pentachloride, consists of one phosphorus atom and five chlorine atoms. Therefore, it has a total of six atoms.
Im assuming you mean protons because phosphorus is its own atom... but anyway phosphorus has 15 protons in its nucleus
Tetra phosphorus dioxide (P4O8) contains 12 atoms: four phosphorus atoms (each with 1 atom) and eight oxygen atoms (each with 2 atoms).
Today are known the phosphorus molecules P2 and P4.
There is one phosphorus atom in the chemical formula H3PO4.
All phosphorus atoms have 15 protons (hence their atomic number of fifteen). Assuming the atom is neutral, it will also have an equal amount of electrons.
4
There are 4 atoms - three lithium (Li) atoms and one phosphorus (P) atom.
Phosphorus trichloride has 3 chlorine atoms and 1 phosphorus atoms, so it has a total of 4 atoms.
There are three single bonds total, one between each of the chlorine atoms and the central phosphorus atom. The phosphorus atom has an additional lone pair of electrons and is thus a has a tetrahedral geometry.