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Question

In the nuclear reaction -

N714+He24O817+........


  1. He24

  2. H11

  3. n01

  4. γ

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Solution

The correct option is B

H11


The nuclear reaction taking place is:

N714+He24O817+........

Consider the blank space is X.

Equate the mass number of both sides of the reaction.

14+4=17+XX=18-17X=1

Equate the atomic mass of both sides of the reaction.

7+2=8+XX=9-8X=1

It can be concluded that X has atomic number 1 and mass number 1. So, the blank element is H11.

Hence, option (B) is correct.


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