Nitrogen by 78 percentage.
Answer:
to change an atom labeled + ion or -ion into a neutral atom, an electron is either added or removed from it
Answer:
A) Carbon
Explanation:
the others are wrong its A
Speakers converts electrical energy into sound energy. So I think it would be radio. Hope this helps
the mass of an atom of a chemical element expressed in atomic mass units. It is approximately equivalent to the number of protons and neutrons in the atom (the mass number) or to the average number allowing for the relative abundances of different isotopes.