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PhysicsModern PhysicsRadioactivityEasy2 minPYQ_2020

PhysicsEasysingle choice

A nucleus $_{n}^{m} X$ emits one α particle and two $β^{-}$ particles. The resulting nucleus is

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Answer:

Solution:

When an alpha particle $(_{2}^{4} He)$ is emitted, the mass number and the atomic number of the daughter nucleus decreases by four and two respectively. When a beta particle (β^–) is emitted, the atomic number of the daughter nucleus increases by one but the mass number remains the same.

$∴_{n}^{m} X \overset{α}{⟶}_{n - 2}^{m - 4} Y \overset{2 β^{-}}{⟶}_{n}^{m - 4} X$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Modern PhysicsSubtopic:Radioactivity

⏱ 2mℹ️ Source: PYQ_2020

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