Adding one proton to the nucleus of an atom
A)converts it to an isotope of the same element.
B)increases its atomic mass by one unit,but does not change its atomic number.
C)increases its atomic number by one unit but does not change its atomic mass.
D)does not change either its atomic number or its atomic mass.
E)converts it to an atom of a different element.

Question

Quizplus · Accepted Answer

Adding one proton to the nucleus of an atom increases its atomic number by one, which changes its identity to that of a different element. The atomic number defines the element by indicating the number of protons in the nucleus.

Adding One Proton to the Nucleus of an Atom