MCQ
How many neutrons are present in the nucleus hydrogen atom?
- A1
- B2
- C3
- D0
Explanation:
Hydrogen exists as three different isotopes. H-1, H-2, and H-3. H-1 is hydrogen with a proton in the nucleus and exists in nature as H2. This is the most common form of hydrogen.
H-2, also known as deuterium, has one proton and one neutron in its nucleus.
H-3, also known as tritium, has one proton and two neutrons in its neucleus. Tritium is a radioactive isotope.
So while the most common form of hydrogen has no neutrons in its neucleus, other isotopes do.
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