Question

which of the following subatomic particles has a mass of 1.67 × 10^-27 kg? protons and neutrons protons only electrons only neutrons only none of the above

Explanation:

Protons and neutrons have similar masses, approximately \(1.67\times 10^{-27}\space kg\). Electrons have a much smaller mass (\(9.11\times 10^{-31}\space kg\)).

Answer:

protons and neutrons