Question

Which letter indicates subatomic particles that each have a mass of 1 amu?

Answer 1

B. Neutrons and C. Protons

Explanation:

Both neutrons and protons have a mass of 1amu.

Answer 2

Both Protons and neutrons have a mass of 1 amu,

those are both located in the center.

Protons are shown by a plus sign (+) and neutrons are shown by a circle (o).

Both B and C are correct.