Respuesta :

alexaaguayo101

Answer:

Isotope

Explanation: Atoms always have an equal number of protons and electrons, and the number of protons and neutrons is usually the same as well. Adding a proton to an atom makes a new element, while adding a neutron makes an isotope, or heavier version, of that atom.

mohamedaidh00

Answer:

an isotope.

Explanation:

Isotopes are two or more types of atoms that have the same atomic number and position in the periodic table and that differ in nucleon numbers.