Respuesta :

each atom and element differs because of the amount of protons as they are the one unchangeable thing. an atom can have a different amount of neutrons because that is an isotope of an atom and a different amount of electrons as atoms form bonds but the one thing that cannot be changed is the protons

ANSWER = PROTONS

How the type of an atom is defined is

An Atom is defined by how many Protons and Neutrons in its nucleus and electrons in its energy levels

From the question we are told that

How the type of an atom is defined

Generally

It is important to note that atoms are defined strictly by its Embodiment which are its electron protons and Neutrons

An Atom is defined by how many Protons and Neutrons in its nucleus and electrons in its energy levels

Therefore

An Atom is defined by how many Protons and Neutrons in its nucleus and electrons in its energy levels

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