| That process would briefly liberate the quarks and gluons that make up protons and neutrons. |
| They would like to use their carborane acids to bind protons to atoms of the inert gas xenon. |
| If a nucleus has too many protons for its number of neutrons, it will be radioactive. |
| Our planet is incessantly bombarded with a rain of cosmic rays, charged stable particles, such as protons and electrons. |
| The protons recombine with the oxygen in the air that's also flowing through the fuel cell and is then expelled as water vapor. |
| In the course of the 20th century, science successively named electrons, protons, neutrons, and quarks. |
