54.868% because well la la la (sorry had to be 20 characters)
Explanation:
5 I don't know what is the answer if I got it wrong
Protons and neutrons are in the nucleus of an atom, whereas electrons are present in orbitals, or shells, outside an atom. Electrons are negatively charged, protons positive, and neutrons have no charge, or are neutral. Protons and neutrons have a relative mass of approx. 1 Atomic Mass Unit (amu), whereas electrons have a relative mass of approx 0.00055 amu.
The answer to your question is the third option "1.079 kg/m<span>3
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