Atomic and Nuclear physics 187 Nuclear physics 178 Particles (Nuclear physics) 108 Nuclear weapons 69 Physics 61 Nuclear magnetic resonance spectroscopy 54 Nuclear chemistry 53 Nuclear energy 53 India 43 Molecular spectroscopy; Nuclear structure; Atomic and Nuclear physics 41 Nuclear disarmament 36 Nuclear Physics 29 Nuclear reactions 28 Nuclear nonproliferation 27 Nuclear warfare 27 Nuclear Magnetic Resonance Spectroscopy 21 Chemistry 20 Nuclear 20 Nuclear magnetic resonance 20 Nuclear power 20 nuclear 20 Nuclear astrophysics 19 Radioactivity 17 History 16 Radiation 15 Atomic physics 14 Nuclear counters 13 Nuclear engineering 13 Nuclear policy 13 Pakistan 13