Which electron configuration represents the electrons of an atom in an excited state? 2-5
2.
2-8-5
3.
2-5-1
4.
2-6

Ch4 and ph3 are both covalent since they are composed both of non-metals.    ch4 is non- polar because of  london forces and has a geometry of tetrahedral  ph3 , on the other hand, is umbrella shaped polar and has dipole-dipole intermolecular force (imf) . since ph3 is polar, it has a stronger imf   

Ais stronge

Idon't know hope someone you