Question

which atomic particle has about the same mass as a proton but has no electrical * charge? neutron nuclide electron isotope

Explanation:

• Neutron: A neutron has a mass approximately equal to that of a proton (\(m_p\approx1.6726\times 10^{-27}\space kg\), \(m_n\approx1.6749\times 10^{-27}\space kg\)) and has no electrical charge (\(q = 0\)).
• Nuclide: A nuclide is a general term for a particular type of atom characterized by its number of protons and neutrons. It is not a single - particle entity like a proton, neutron, or electron.
• Electron: An electron has a much smaller mass (\(m_e\approx9.1094\times 10^{-31}\space kg\)) compared to a proton and has a negative charge (\(q=- 1.6\times10^{-19}\space C\)).
• Isotope: Isotopes are atoms of the same element (same number of protons) but with different numbers of neutrons. It is a category of atoms, not a single sub - atomic particle.

Answer:

neutron