CBSE Class 9 Answered
Composition of the nuclei of two atomic species A and B are given as under:
A B
Protons 17 17
Neutrons 18 20
(i) What are the mass numbers of A and B?
(ii) How are they related to each other?
Asked by Topperlearning User | 20 May, 2014, 01:43: PM
Expert Answer
(i) Mass number of A = 35
Mass number of B = 37
(ii) These two species i.e. A and B are isotopes, as they have the same number of protons in their nuclei.
Answered by | 20 May, 2014, 03:43: PM
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