But electrons are numerous. One eV for every atom in a kilogram of carbon results in a total energy of 8 million joules. This shows that shows that the chemical energy of coal-burning yields about 4 eV per atom burned.
Nuclear energies are much higher.
Alpha particles from naturally decaying radium, thorium, uranium, and similar species, typically have 4 MeV of energy. The Energy Advocate 1998. All rights reserved.