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एक रेडियोऐक्टिव नाभिक (प्रारंभिक द्रव्यमान संख्या A तथा परमाणु क्रमांक Z) 3 अल्फा कण तथा 2 पाजिट्रॉन उत्सर्जित करता है | अंतिम नाभिक में न्यूट्रॉनों और प्रोटॉनों का अनुपात होगा -
A. 1.`(A-Z-4)/(Z-2)`
B. 2.`(A-Z-8)/(Z-4)`
C. 3.`(A-Z-4)/(Z-8)`
D. 4.`(A-Z-12)/(Z-4)`

1 Answer

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Best answer
Correct Answer - C
`""_(Z)X^(A-3alpha)to""_(Z-6)Y^(A-12)to""_(Z-6-2)Y^(A-12)`
अत: प्रोटॉनों की संख्या `=Z-6-2=Z-8`
न्यूट्रॉनों की संख्या `=A-12-(Z-8)=A-Z-4`
अभीष्ट अनुपात `=(A-Z-4)/(Z-8)`.

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