what must differ between the atom of two different elements? protons in the atom electrons in the atom neutrons in the atom protons and neutrons in the nucleus

Respuesta :

I think the correct answer from the choices listed above is the third option. The neutrons in the atom must differ between the atom of two different elements. Every element has it own number of neutron which characterizes it. Hope this answers the question. Have a nice day.

Answer:

Protons in the atom

Explanation:

I took this test, what they said is wrong