Question

An atom has an atomic number 17 and atomic mass number 35. How many neutrons are present in its nucleus?

A. 17
B. 18
c. 35

Answer 1

the answer is option B. 18 ..

(no. of neutrons= mass no. - atomic no. )

Hope it helps !!!

Answer 2

The number of neutrons that are present in its nucleus is 18. The correct option among all the options that are given in the question is the second option or option "B". Mass number minus the atomic number gives the number of neutrons. I hope that this is the answer that has come to your help.