Question

Which two subatomic particles weigh 1 amu and are both found in the

Nucleus? *
O Proton and Electron
Electron and Neutron
O Proton and Neutron

Answer 1

Explanation: Protons and neutrons both weigh about one atomic mass unit or amu. Isotopes of the same element will have the same atomic number but different mass numbers.

( lemme know if it's wrong )