Q. 29

Calculate the number of neutrons present in the nucleus of an element X which is represented as 3115

Answer :

The atomic number of element X is 15. This means it has 15 protons. The mass number of element X is 31. Mass number = No. of protons + No. of neutrons = 31

The number of neutrons = 31 number of protons = 3115 = 16


Element X has 16 neutrons.


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