Alpha decay
Alpha decay is a Science & Technology concept from the MPSC syllabus, tested in 2 past MPSC questions (2023, 2025). Below are those real questions with their correct answers and explanations, plus the concepts worth being comfortable with first.
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Real questions that test this
जेव्हा α-कण किरणोत्सारी घटकातून बाहेर पडतात तेव्हा When α-particle emits from a radioactive element then
An alpha particle is a helium nucleus (He-4,2). When emitted from a radioactive nucleus, the mass number decreases by 4 and the atomic number decreases by 2.
_____________ या प्रक्रियेत न्यूट्रीनो कण उत्सर्जित होतो. Neutrino particle is emitted in the process of _____________.
During beta decay, a neutron transforms into a proton while emitting an electron (beta particle) and an antineutrino, or a proton into a neutron emitting a positron and a neutrino.