Home Element byYOUR WEB. •December 08, 2020 0 Hidrozen - neutron ❌Electron - mass H atom mass 1/1831P - 1.602 x 10*19 coulambMass 1.672 x 10*24 gram Or 1.008 amuRadius 1× 10 *18 CMHydrogen Ion (H+) = protonMass - P=N