Question

and ___ are the two subatomic particles found in an element’s a electrons, neutrons b neutrons, protons c protons, electrons

Explanation:

An element's atomic nucleus contains protons and neutrons, which define the element's identity and mass. Electrons orbit the nucleus and can vary in number (forming ions), so they are not the defining fixed subatomic particles for an element's core structure. The pair of neutrons and protons are the two subatomic particles that make up the nucleus, the central part of an element's atom.

Answer:

B. neutrons, protons