Number of Neutrons in heavy hydrogen atom are ___________?

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Official Soldier Technical Paper : [Gwalior] - 1 Nov 2020
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  1. 1
  2. 2
  3. 3
  4. 0

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Option 1 : 1
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The correct answer is 1.

CONCEPT:

  • Isotopes: Isotopes are atoms of the same element that have different numbers of neutrons(mass number) but the same number of protons and electrons(atomic number).
  • Deuterium(heavy Hydrogen) and Tritium are isotopes of hydrogen.
     

 

\({}_1^1H\)

\({}_1^2H\)

\({}_1^3H\)

 

Protium (P)

Deuterium (d)

Tritium (T)

p

1

1

1

n

0

1

2

e

1

1

1


F2 Jitendra Madhu 31.10.20 D6

EXPLANATION:

  • Heavy hydrogen(Deuterium) is 1Dor 1H2.
  • Number of neutrons = Mass number(A) - Atomic number(Z)
  • For heavy hydrogen, Mass number = 2 and Atomic number = 1.
  • Number of neutrons = 1.

Thus, Heavy hydrogen contains one proton and one neutron. 

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