A nucleus Z X^A emits an α-particle. The resultant nucleus emits a β^+particle. The respective

step 1 Here the answer will be that is correct option is option B and now I will give here explanation

A nucleus Z X^A emits an α-particle. The resultant nucleus...

A nucleus ${ }_{Z} X^{A}$ emits an $\alpha$-particle. The resultant nucleus emits a $\beta^{+}$particle. The respective atomic and mass numbers of the final nucleus will be
(a) $Z-3, A-4$
(b) $Z-1, A-4$
(c) $Z-2, A-4$
(d) $Z, A-2$

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Key Concepts

Alpha Decay

Alpha decay is a nuclear process in which an unstable nucleus emits an alpha particle, a cluster of two protons and two neutrons. This emission decreases the mass number by 4 and reduces the atomic number by 2, altering the identity of the resulting nucleus.

Beta-plus Decay

Beta-plus decay (positron emission) is a process whereby a proton in a nucleus is converted into a neutron, releasing a positron and a neutrino. This transformation decreases the atomic number by 1 while leaving the mass number unchanged.

Conservation Laws in Nuclear Reactions

Conservation laws in nuclear reactions require that both the mass number and the atomic number remain constant across the reaction. These principles are essential for calculating the changes in nuclear composition during decay processes such as alpha and beta-plus emissions.

Nuclear Decay Chain

A nuclear decay chain refers to a series of successive radioactive decays where the daughter nucleus from one decay becomes the parent nucleus for the subsequent decay. Understanding decay chains is crucial to determining the properties of the final nucleus after multiple decay events.

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