For the structure below, determine the total number of π electrons and the number of π electrons delocalized in the ring. Indicate whether the compound is aromatic, nonaromatic, or antiaromatic. Assume the structure is planar.

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   

Hello.the answer is  hydrosphere, geosphere, and biosphere  have a nice day