The hybridization of arsenic in AsF5 is sp3d2 hybridization, where arsenic forms five equivalent sp3d2 hybrid orbitals. In AsF3, the hybridization is sp3, with arsenic forming three sp3 hybrid orbitals.
AsF3 is arsenic trifluoride.
The name of the covalent compound AsF3 is arsenic trifluoride.
The scientific name for AsF3 is arsenic trifluoride.
The compound AsF5 is arsenic pentafluoride.
Assuming that the questioner meant "trifluoride" instead of "trifluride", there are four total atoms in the formula unit, AsF3.
It is a polar molecule and has polar bonds.
The bond angle for AsF3 is approximately 87.5 degrees.
It is a polar molecule and has polar bonds.
Trigonal pyramidal. As has 5 valence electrons. It forms single bonds with each of the F atoms, donating one electron to each bond. This leaves 2 unbonded electrons, or a single lone pair. Thus the molecule has 4 different groups attached to As, and the electron configuration is tetrahedral. A tetrahedral configuration with one lone pair results in a trigonal pyramidal molecular geometry.