8) What atom matches this electron configuration? 1s2 2s2 2p6 3s2 3p6 4s2 3d10
A. Zn
B. Br
C. c1
D. W

The answer is a i think

Bthe s the

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