What is the electron configuration for aluminum and arsenic in noble gas notation?

The teacher is mostly talking about the distillation of a mixture

The total number of electrons is 14

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