Two different have nine protons each and the same mass. however, one is neutral while the other has a negative charge. describe what each atomic structure could be, listing the possible number and location of all subatomic particles.

What are the options? i can you if you give them.

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   

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What do you need with it’s not a question your just stating what it says