an atom of element be has four protons, four electrons, and five neutrons. which element below could be an…

an atom of element be has four protons, four electrons, and five neutrons. which element below could be an isotope of this atom? o sodium - 10 o beryllium - 10 o boron - 9 o carbon - 9
Answer
Brief Explanations:
Isotopes are atoms of the same element with different numbers of neutrons. The given atom is of beryllium (Be) with 4 protons. An isotope must also be beryllium. Among the options, only beryllium - 10 is beryllium.
Answer:
beryllium - 10