The ion has two positive protons but one electron so it is a positive ion. Helium ion, two neutrons, two protons and three electrons. Nuclear fission close nuclear fissionThe splitting of a large ...

For example, a helium atom has an atomic mass of 4 ... besides the protons in the nucleus were adding to the mass. One leading explanation was that there were electrons and additional protons ...

For example, a helium atom has an atomic mass of 4 ... besides the protons in the nucleus were adding to the mass. One leading explanation was that there were electrons and additional protons ...

It is not the same as a helium atom as it does not ... unchanged as the total of protons and neutrons is the same. The atomic number increases by one as there is one new proton.