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Atoms of the same element possessing ide...

Atoms of the same element possessing identical mass but differing in half`-` life period are called `………………………….` .

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Nuclear isomers
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The atoms of same element having same chemical properties but different masses are called

Assertion (A) : The isotopes are the atoms of the same element with different atomic masses. They require different positions in the periodic table. Reason (R) : Variable number of neutrons in the nuclei of the atoms of same elements leads to the different atomic masses.

The atoms with same mass number but different atomic number are called

Atoms of different elements having the same number of neutrons but differnet atomic numbers are called

CENGAGE CHEMISTRY-NUCLEAR CHEMISTRY-Exercise Fill In The Blanks
  1. The disappearance of one atomic mass unit (am u) releases ………………………. ...

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  2. The most effective projectile in the transmutation of heavy element is...

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  3. The hydrogen bomb uses the principle of ……………………….

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  4. The atomic bomb uses the principle of ……………… .

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  5. ………………………….. brings fission in U^(235).

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  6. .(7)N^(14)+ .(0)n^(1)rarr ...................+.(1)H^(1)

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  7. Atoms of the same element possessing identical mass but differing in h...

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  8. Nuclear fusion takes place at very high temperature and hence it is ca...

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  9. The splitting of a heavy nuclei with neutron into two smaller nuclei a...

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  10. The age of archaeological findings can be determined by ……………….. meth...

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  11. The age of the earth has been estimated by …………… dating technique.

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  12. ………………….. emitted by Co-60 can burn cancerous cells.

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  13. In Indai, the first nuclear reactor was established at ………………….. .

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  14. The type of reactions considered to be the principal sources of energy...

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  15. Write the complete nuclear reactions : ltbr. a. .(4)Be^(9)+ .(9)He^(4...

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  16. The transuranic element with longes half - life is …………………….

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  17. …………….. is used for the treatment of leukaemia.

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  18. Radioactive disintegration is a ………………. order reaction.

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  19. Pu^(239) is artificial nuclear fuel.It is obtained from fertile materi...

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  20. Artificial radioactivity was discovered by …………………………..

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