Home › CBSE Class 11 (Science) › Chemistry › Atomic Structure › Compared with a proton, the mass of a neutron is:
Compared with a proton, the mass of a neutron is:
ASlightly greater
BSlightly smaller
CSharply greater
DSharply smaller
Answer & Solution
Correct answer: A. Slightly greater
1. The two particles are close but not identical in mass.
2. The neutral particles emitted had a mass slightly greater than that of protons.
3. So the correct answer is slightly greater.
_Source: syllabus Chemistry, Ch 2 'Structure of Atom'_
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