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If an isotope of hydrogen has two neutrons in itsatom, its atomic number and atomic mass numberwill respectively be    [1992]
  • a)
    2 and 1
  • b)
    3 and 1
  • c)
    1 and 1
  • d)
    1 and 3.
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
If an isotope of hydrogen has two neutrons in itsatom, its atomic numb...
As number of neutron = Mass number
– atomic number
Give number of neutron = 2
∴ Mass number will be 3 and atomic number
will be one.
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Most Upvoted Answer
If an isotope of hydrogen has two neutrons in itsatom, its atomic numb...
The atomic number of isotope of hydrogen is
always one, so it have only one proton in its nucleus
and given that it have two neutrons, it means that
its mass number is 3.

Hence the answer is option d
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