Question

guided practice the nucleus of an atom consists of protons and ______. a. isotopes b. electrons c. helium d. neutrons

Explanation:

An atom's nucleus is made up of positively charged protons and neutral neutrons. Electrons orbit the nucleus outside, isotopes are variants of elements with different neutron counts, and helium is a specific element, not a component of all atomic nuclei.

Answer:

D. neutrons