CBSE Class 9 Answered
Given: Number of protons = 13; Number of electrons = 13; Number of neutrons = 14; Calculate the mass number of the element.
Asked by Topperlearning User | 14 May, 2014, 06:35: AM
Expert Answer
Mass number is the sum of neutrons and protons present in a nucleus.
Mass no. = No. of protons + No. of neutrons
= 13 + 14
= 27
Therefore, its mass number is 27.
Answered by | 14 May, 2014, 08:35: AM
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