alleryStart learning →Deuterium, an isotope of hydrogen, has one proton and how many neutrons?
A2
B3
C1
D0
Answer & Solution
Correct answer: C. 1
1. Hydrogen itself has a bare proton.
2. Deuterium is heavier by one nucleon.
3. So it has 1 neutron.
_Source: syllabus Physics Part II, Class XII, Chapter 13, Nuclei._
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