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Half life period of a radio active eleme...

Half life period of a radio active element is 1500 years. Find the value of disintegration constant interms of second.

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`lambda=(0.693)/(t^(1//2)) =(0.693)/(1500 yrs)`
`=(0.693)/(1500xx365xx24xx60xx60 sec)`
`=0.1465 xx10^(-10) sec^(-1)`
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NCERT BANGLISH-NUCLEAR CHEMISTRY-SELF EVALUATION
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  2. The phenomenon of radioactivity was discovered by

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  3. The most penetrating radiations are

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  4. In the nuclear reaction, 92^(X^(232))rarr 89^(Y^(220)), the number of ...

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  5. Which one of the following particles is used to bombard 13A^(Al^(27)) ...

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  6. The reaction 5^(B^(8))rarr4^(Be^(8)) takes place due to

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  7. Radioactivity is due to

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  8. In the following radioactive decay, 92A^(xA^(232))rarr89^(y^(220)), ho...

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  9. 92^(U^(235)) nucleus absorbs a neutron and disintegrates into 54^(Xe^(...

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  10. Loss of a beta-particle is equivalent to

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  11. Which of the following is used as neutron absorber in the nuclear reac...

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  12. Define radio activity.

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  13. What is half life period.

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  14. Write two difference between chemical reaction and nuclear reaction.

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  15. What is Q value of a nuclear reaction?

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  16. What are the types of nuclear reaction. Give example for each type.

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  17. Explain the principle behind the Hydrogen bomb.

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  18. State two uses of radio carbon dating.

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  19. What is binding energy of Nucleus?

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  20. What is radioactivity? How was the phenomenon discovered?

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  21. What is nuclear fission? What are controlled and uncontrolled fission ...

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