Respuesta :

jaybloomfield11

Answer:

What is the atomic number of an atom that has 5 neutrons and 4 electrons? A neutral atom will have the same number of electrons is does protons. Since it has 4 protons, it must have an atomic number of 4. (That makes it beryllium.)

Explanation:

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jisookim27

Answer:

4 protons, 5 neutrons, and 4 electrons are there in an atom of beryllium.

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