13.Nuclei
medium

एक रेडियोसक्रिय नाभिक

${ }_{\mathrm{Z}}^{\mathrm{A}} \mathrm{X} \rightarrow {}_{\mathrm{Z}-1}{\mathrm{B}} \rightarrow {}_{\mathrm{Z}-3 }\mathrm{C} \rightarrow {}_{\mathrm{Z}-2} \mathrm{D}$ क्रम में, जहाँ $\mathrm{Z}$ तत्व $\mathrm{X}$ का परमाणु संख्या है। क्रम में विघटित सम्भव कण हैं, क्रमशः :

A

$\alpha, \beta^{-}, \beta^{+}$

B

$\alpha, \beta^{+}, \beta^{-}$

C

$\beta^{+}, \alpha, \beta^{-}$

D

$\beta^{-}, \alpha, \beta^{+}$

(NEET-2021)

Solution

$\beta^{+}$decreases atomic number by $1$

$\alpha$ decreases atomic number by $2$

$\beta^{-}$increases atomic number by $1$

Standard 12
Physics

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