PCl3 is not an atom, it is a molecule that is comprised of one phosphorus atom and three chlorine atoms.
If you wish to learn more about it, this is the link to it's wikipedia article http://en.wikipedia.org/wiki/Phosphorus_trichloride
Hope that helps
PCl3 is phosphorous trichloride and is a molecule.
An atom is the smallest form of an element.
A molecule is two or more atoms together
Since PCl3 are two separate elements then it is a molecule.
No, it is tetrahedral.
Cf 'Related links' for a picture of PCl3
Totally of four atoms (one Phosphorus and three chlorine atoms)
5
PF3
PCl3 + H2O  H3PO3 + 3HCl
The vapor pressure of PCl3 at 298K is approximately 52.8 mmHg.
Hydrogen chloride: R-OH+PCl3=R-Cl+H3PO3+HCl
3
The phosphorus trichloride (PCl3) has a molecule with a trigonal pyramidal form.
PF3
argon
PCl3 has a pyramidal geometry, with three polar P-Cl bonds and one lone pair of electrons. Hence the molecule is polar.
The phosphorus trichloride (PCl3) has a molecule with a trigonal pyramidal form.
PCL3
PCl3 is the chemical symbol for phosphorous trichloride.
PCl3 is the chemical formula for phosphorous trichloride.
PCl3 + H2O  H3PO3 + 3HCl
PCl3 =)
Yes, it is polar like PCl3, AsCl3 or NCl3.
No, PCL3 bonds covalently. Hope this helps :)