Given the equation representing a reaction where the masses are expressed in atomic mass units: hydrogen-2 + hydrogen-1 helium-3 + 8.814 × 10-16 kJ 2.014 102 u 1.007 825 u 3.016 029 u

The main types of electromagnetic radiation. radio  waves have  the lowest frequencies  and  longest  wavelengths, while gamma  waves have highest frequencies  and shortest wavelengths. the wavelengths vary across the electromagnetic spectrum from about 10–15 m to more than 104 m.hope it !

Bromine has atomic number  35  which means there are  35 protons  and  44  neutrons to give a total of 79 nucleons. the fact that it's a positive ion means that it has lost an electron; so there'll be  34 electrons.