covalent non-polar because the electronegativity difference between hydrogen and phosphine is very slight
http://en.wikipedia.org/wiki/Chemical_polarity
http://en.wikipedia.org/wiki/Electronegativity
PH3 is a covalent bond, specifically a polar covalent bond. This is because phosphine (PH3) is formed when phosphorus shares its electrons with hydrogen to complete its valence shell, creating a partial negative charge on phosphorus and a partial positive charge on hydrogen.
Neither. It is hydrogeneous.
Phosphine (PH3) forms a molecular solid in which individual PH3 molecules are held together by weak van der Waals forces.
An ionic bond
The bond between P and H is covalent, eg in PH3
PH3 is a covalent bond, specifically a polar covalent bond. This is because phosphine (PH3) is formed when phosphorus shares its electrons with hydrogen to complete its valence shell, creating a partial negative charge on phosphorus and a partial positive charge on hydrogen.
Neither. It is hydrogeneous.
The bond angle in PH4 is higher than PH3 because PH4 has a tetrahedral molecular geometry with bond angles of about 109.5 degrees, while PH3 has a trigonal pyramidal molecular geometry with bond angles of about 107 degrees. This difference in bond angles is due to the presence of an additional hydrogen atom in PH4 compared to PH3.
Phosphine (PH3) forms a molecular solid in which individual PH3 molecules are held together by weak van der Waals forces.
An ionic bond
No chemical bond, but a metallic bond.
The bond between P and H is covalent, eg in PH3
HCl, NH3, PH3, HF, CS, H2CO, H2O have Lewis formulas that do not incorporate a double bond. CS2 has a Lewis formula with a double bond between the C and S atoms.
It contains a lone pair of electrons. Hence, it can donate it thereby ,its a base. The tendency to donate the electron pairs can determine the basicity of a base. Therefore, PF3 is less basic than PH3.
A double bond is found in an alkene. It consists of one sigma bond and one pi bond between the carbon atoms in the alkene molecule.
The covalent bond.
Hydrogen bonds