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A common example of beta^(-) decay is .(...

A common example of `beta^(-)` decay is `._(15)P^(32) to ._(16)S^(32)+x+y`. Then, x and y stand for

A

electron and neutrino

B

positron and neutrino

C

electron and anti-neutrino

D

positro and anti-neutrino

Text Solution

Verified by Experts

The correct Answer is:
C
Since, 8 `alpha`-particles `4beta^(-)`-particles and `2beta^(+)`-particles are emitted, so new atomic number
`Z'=Z-8xx2+4xx1-2xx1`
`=92-16+4-2=92-14=78`
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-ATOMS, MOLECULES AND NUCLEI -Exercise 1 (TOPICAL PROBLEMS)
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  5. For the radioactive nuclei that undergo either alpha or beta decay, wh...

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  6. The radioactivity of a sample is l(1) at a time t(1) and l(2) time t(2...

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  11. A radioactive material decays by simulataneous emission of two particl...

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  12. Number of nuclei of a radioactive substance at time t=0 are 2000 and 1...

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  13. The ratio of molecular mass of two radioactive substances is 3//2 and ...

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  14. Number of nuclei of a radioactive substance at time t=0 are 2000 and 1...

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  15. A radioactive isotope has h half-life of 2 yr. how long will itt take ...

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  16. A sample of a radioactive element has a mass of 10 g at an instant t=0...

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  17. What is the respective number of alpha and beta particles emitted in t...

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  18. Two radioactive materials X(1) and X(2) have decay constants 5 lambda ...

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  19. Activity of a radioactive sample decreases to (1/3)rd of its original ...

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