If one neutron is added to a nucleus of an isotope of carbon,¹²C,in a particular nuclear reaction,the result will be:
A) ¹¹C.
B) ¹³C.
C) ¹²O.
D) ¹³O.

Question

Quizplus · Accepted Answer

When one neutron is added to the nucleus of ¹²C, the resulting isotope will be ¹³C. This is because carbon has six protons, and the addition of one neutron will increase the atomic mass by one unit while keeping the number of protons unchanged, resulting in an isotope with seven neutrons and six protons. Therefore, the correct choice is B, ¹³C.

If One Neutron Is Added to a Nucleus of an Isotope