Question

question 8 (1 point)
an atoms atomic number is determined by the number of
neutrons in its nucleus.
nucleons in its nucleus.
protons in its nucleus.
alpha particles in its nucleus.

Explanation:

To determine the correct option, we recall the definition of atomic number. The atomic number of an atom is defined as the number of protons present in the nucleus of that atom. Neutrons contribute to the mass number (along with protons), nucleons are protons + neutrons, and alpha particles are not part of the nucleus in the context of defining atomic number. So the correct option is the one related to protons in the nucleus.

Answer:

C. protons in its nucleus.