Published by:
CGP EDU Academic Team
Published on: August 14, 2026
The number of electrons and neutrons of an element is 18 and 20 respectively. Its mass number is
Text Solution
Verified by ExpertsThe correct answer is:
D
No. of proton and no. of electron = 18 
and No. of neutron = 20
Mass number = P + N = 
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