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The most ratioactive element is...

The most ratioactive element is

A

uranium

B

Thorium

C

radium

D

Plutonium

Text Solution

Verified by Experts

The correct Answer is:
C
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DINESH PUBLICATION-NUCLEAR AND RADIO CHEMISTRY-Evaluate Yourself
  1. The most ratioactive element is

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  2. One among the following set of quantum numbers defines the highest ene...

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  3. If threshold wavelength (lambda(0)) for ejection of electron from meta...

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  4. All elements in the third period have

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  5. One among the following species is planar

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  6. From amongst the following triatomic molecules the least bond angle is...

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  7. The atoms/ion listed in correct order of increasing size are

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  8. The solution of Schrodinger equation for hydrogen leads to three quant...

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  9. In which of the following are all the electrons paired ?

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  10. The diamagnetic molecules from among mole cules of second period eleme...

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  11. Which of the following statements is correct ?

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  12. Amongst phosphorus halides the correct increasing order of bond angle ...

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  13. The State of hybridisation of phosphorus (Z=15) in phosphate ion (PO(4...

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  14. The strength of sigma bond formed by s-s, s-p & p-p overlaps are in th...

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  15. In a crystalline solid, W atoms are at corners, O atoms at edge centre...

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  16. A binary solid, A^(+) B^(-) ( formula mass= 60) has a CsCl structure....

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  17. The molecular orbital shown below is described as

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  18. Which among the following molecules has the largest dipole moment ?

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  19. The difference between DeltaH and Delta E at constant voluem is equal ...

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  20. If the critical frequency (v(0)) for emission of photoelectrons from a...

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  21. The expected wavelength at which the first line of P fund series shall...

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