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Which of the following metals was discov...

Which of the following metals was discovered by Madam Curie?

A

Polonium and radium

B

Bismuth and lead

C

Thorium and uranium

D

Cobalt and barium

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The correct Answer is:
A
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NIKITA PUBLICATION-ATOMS, MOLECULES AND NUCLEI-MCQs
  1. Curie is unit of

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  2. Heavy radioactive elements eventually turn into

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  3. Which of the following metals was discovered by Madam Curie?

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  4. Artificial radioactivity was discovered by …………………………..

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  5. Radioactive samples are stored in lead boxes because it is

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  6. the process of radioactive radiations remains unaffected due to

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  7. Which of the following are positively charged particles?

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  8. The alpha particle is same as

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  9. Which of the following particle is deflected towards positive plate in...

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  10. The mass of an alpha-particle is.

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  11. To produce intense ionisation, in air at S.T.P., we have to use

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  12. The penetrating power of alpha-particle is

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  13. The velocity of alpha-particles is of the order of

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  14. Which of the following particle can affect photographic plates?

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  15. Which of the following particle can be deflected by electric and magne...

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  16. Which of the following particle can produce fluorescence in substances...

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  17. If the mass number of an atom of an element decreases by 4 and atomic ...

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  18. In an alpha-decay

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  19. The part of the atom which is not affected by chemical pr physical cha...

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  20. The nature of Becqueral rays was discovered by

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