General Science ₉₂U²³⁸ Parmanu Me Kitne neutron Hote Hai ?

₉₂U²³⁸ परमाणु में कितने न्यूट्रोन होते है ? - How many neutrons are there in a U atom? - ₉₂U²³⁸ Parmanu Me Kitne neutron Hote Hai ? General Science in hindi,  Physics 238 question answers in hindi pdf  146 questions in hindi, Know About 92 General Science online test General Science notes in hindi quiz book    330