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If 1 u = 1.66xx10^(-27) kg and average r...

If 1 u = `1.66xx10^(-27)` kg and average radius of a nucleus is `1.2xx10^(-15)` m, then determine the radius and density of a `Ra^226` nucleus.

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`7.3xx10^(-15) m , 2.29xx10^(-17) kg .m^(-3)`
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CHHAYA PUBLICATION-ATOMIC NUCLEUS-EXERCISE
  1. At a given time, 25% of the nuclei present in a sample is radioactive....

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  2. The masses of a proton and a neutron are 1.0073 u and 1.0087 u , respe...

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  3. If 1 u = 1.66xx10^(-27) kg and average radius of a nucleus is 1.2xx10^...

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  4. The rate of disintegration of a radioactive element at any instant is ...

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  5. The half-life of a radioactive element is 8 d . If the initial mass of...

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  6. The half-life of a radioactive element is 1600 y. What part of the ele...

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  7. The half-life of a radioactive element is 3 min. If the initial mass o...

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  8. Initial mass of a radioactive element is 1 g. If 0.25 g of the element...

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  9. The half-life of a radioactive element is 1600 y. After what time 10% ...

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  10. One-fourth part of a radioactive element is disintegrated in 664 y. De...

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  11. The half-life of U^238 is 4.5xx10^9 y. In any radioactive sample if 1...

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  12. The activity of 1 g. of a sample of Po^210 is 4442 Ci. Determine the h...

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  13. The half-life of an isotope of carbon is 6000 y. In how many years the...

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  14. The half-life of a radioactive element is 2h. If its initial mass be 5...

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  15. The half-life of Radon is 3.8 d. After how many days 1/20 part of some...

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  16. If a radioactive substance disintegrates by 20% in 5d, then what part ...

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  17. Radioactive isotope Th^232 (Z = 90) emits six alpha-particles and four...

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  18. The half-life of a radio-isotope is 3 min. What fraction of the number...

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  19. One -fourth of the amount of a radioactive element decays is 2490 yea...

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  20. The half-life of Radium-226 is 1600 years. What will be the activity o...

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