Describe how elements form bonds? Investigate how valence electrons related to chemical bonds?

Differentiate between ionic and covalent bonding?

Abbreviated as mg-25.

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   

Answeropposite;