The number of neutrons and electrons,

Question:

The number of neutrons and electrons, respectively, present in the radioactive isotope of hydrogen is :-

  1. 1 and 1

  2. 3 and 1

  3. 2 and 1

  4. 2 and 2


Correct Option: , 3

Solution:

Radioactive isotope of hydrogen is Tritium $\left({ }_{1}^{3} \mathrm{~T}\right)$

No. of neutrons $(\mathrm{A}-\mathrm{Z})=3-1=2$

No. of electrons $=1$

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