MCQ practice · SSC Chemistry Board questions · Chapter 3: Structure of Matter
How many neutrons does tritium have?
Think it through first, then pick an option.
- a 0
- b 1
- c 2
- d 3
Answer and explanation
Correct answer: c 2
Tritium ³₁T: 3 − 1 = 2 neutrons.
Why the other options are wrong
- a 0: Zero neutrons is protium; tritium has 2.
- b 1: One neutron is deuterium; tritium has 2.
- d 3: 3 is tritium's mass number; it has 2 neutrons.
More board questions on this topic
- How many isotopes does hydrogen have?
- How many isotopes of hydrogen are prepared in the laboratory?
- Which isotope of hydrogen has only one neutron?
- What is the number of neutrons in the last isotope of hydrogen?
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