The neutron mass is 1.675 x 10-27 kg. Express the proton mass in eV/c, keeping 4 significant figures B) The mass of the electron is 9.109 x 10-31 kg. Express this in eV/c. C) What is the mass of the hydrogen atom in eV/c?

given,

mass of neutron = 1.675 * 10⁻²⁷ kg

1 kg = 5.58 * 10³⁵ eV/c²

a) mass of proton = 1.675 * 10⁻²⁷ * 5.58 * 10³⁵ = 9.34 * 10⁸ eV/c²

b) mass of electron = 9.109 x 10⁻³¹ * 5.58 * 10³⁵ = 5.08 * 10⁵eV/c²

c) mass of hydrogen = 1.675 * 10⁻²⁷ * 5.58 * 10³⁵ = 9.34 * 10⁸ eV/c²