Class 9 Exam > Class 9 Questions > The isotope deuterium of hydrogen hasa)No neu... Start Learning for Free
The isotope deuterium of hydrogen has
- a)No neutrons and one proton
- b)One neutrons and two protons
- c)One electron and two neutron
- d)One proton and one neutron
Correct answer is option 'D'. Can you explain this answer?
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The isotope deuterium of hydrogen hasa)No neutrons and one protonb)One...
Understanding Deuterium
Deuterium is an isotope of hydrogen, and it has unique characteristics that distinguish it from the more common hydrogen isotope, protium.
Composition of Deuterium
- Deuterium consists of:
- One proton: This is the defining feature of all hydrogen isotopes.
- One neutron: This additional neutron differentiates deuterium from protium, which has no neutrons.
Why Option D is Correct
- The correct option is D: One proton and one neutron. Here’s why this option accurately describes deuterium:
- Proton Count: As a hydrogen isotope, deuterium must have one proton, which is essential for its identity as hydrogen.
- Neutron Count: The presence of one neutron makes deuterium heavier than protium. This additional neutron is what classifies it specifically as deuterium.
Comparison with Other Options
- Option A: No neutrons and one proton - This describes protium, not deuterium.
- Option B: One neutron and two protons - This is incorrect as it refers to helium-3, not deuterium.
- Option C: One electron and two neutrons - This is a misrepresentation of deuterium, as it has only one neutron.
Conclusion
In summary, deuterium is an isotope of hydrogen characterized by having one proton and one neutron, making option D the correct answer. Understanding isotopes is crucial in chemistry and physics as it leads to insights about atomic structure and behavior.
Deuterium is an isotope of hydrogen, and it has unique characteristics that distinguish it from the more common hydrogen isotope, protium.
Composition of Deuterium
- Deuterium consists of:
- One proton: This is the defining feature of all hydrogen isotopes.
- One neutron: This additional neutron differentiates deuterium from protium, which has no neutrons.
Why Option D is Correct
- The correct option is D: One proton and one neutron. Here’s why this option accurately describes deuterium:
- Proton Count: As a hydrogen isotope, deuterium must have one proton, which is essential for its identity as hydrogen.
- Neutron Count: The presence of one neutron makes deuterium heavier than protium. This additional neutron is what classifies it specifically as deuterium.
Comparison with Other Options
- Option A: No neutrons and one proton - This describes protium, not deuterium.
- Option B: One neutron and two protons - This is incorrect as it refers to helium-3, not deuterium.
- Option C: One electron and two neutrons - This is a misrepresentation of deuterium, as it has only one neutron.
Conclusion
In summary, deuterium is an isotope of hydrogen characterized by having one proton and one neutron, making option D the correct answer. Understanding isotopes is crucial in chemistry and physics as it leads to insights about atomic structure and behavior.
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The isotope deuterium of hydrogen hasa)No neutrons and one protonb)One...
Because we know that isotopes have same atomic no but different atomic mass . the isotopes of hydrogen have same no of proton because no of proton = atomic no and and atomic no do not change in isotopes but the no of electron will change due to change in its mass
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