Atomic and Nuclear physics 187 Nuclear physics 178 Particles (Nuclear physics) 108 Physics 88 Nuclear weapons 69 Nuclear magnetic resonance spectroscopy 54 Nuclear chemistry 53 Nuclear energy 53 India 46 nuclearisation 45 Molecular spectroscopy; Nuclear structure; Atomic and Nuclear physics 41 Nuclear disarmament 36 Nuclear Physics 29 Chemistry 28 Nuclear reactions 28 Nuclear nonproliferation 27 Nuclear warfare 27 History 26 Radioactivity 24 Nuclear Magnetic Resonance Spectroscopy 21 Nuclear 20 Nuclear magnetic resonance 20 Nuclear power 20 nuclear 20 Nuclear astrophysics 19 Radiation 18 Arms control 17 Foreign relations 17 International relations 16 Medical physics 16