Democritus's original atomic theory was revised because it
a. claimed matter is made of atoms
b. claimed atoms could be divided
c. explained what electrons are
d. did not have a scientific basis
.
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ocatis
charce is called all

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   

Nonmetal are moldable and easily shaped