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₉₂U²³⁴ has 92 protons and 238 nucleons. It decays by emitting an alpha particle and becomes
Options
(a) ₉₂U²³⁴
(b) ₉₀Th²³⁴
(c) ₉₂U²³⁵
(d) ₉₃Np²³⁷
Correct Answer:
₉₀Th²³⁴
Explanation:
Emission of alpha particle, decreases the mass number by 4 and charge number by 2.
.·. Decrease in mass number = 238 – 4 = 234
Decrease in charge number = 92 – 2 = 90 ₉₀Th²³⁴ is emitted.
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Topics: Radioactivity
(83)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A coin of mass m and radius r having moment of inertia I about the axis passes
- Pure Si at 500 K has equal number of electron (nₑ) and hole (nₕ) concentrations
- “On flowing current in a conducting wire the magnetic field is produced around it”.
- A spherical drop of mercury having a potential of 2.5 v is obtained as a result
- The self-inductance of a choke coil is 10 mH. When it is connected with a 10 V DC source,
Topics: Radioactivity (83)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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