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musiclover10045

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.

Answer:

B. Neutrons and C. Protons

Step-by-step explanation:

Both neutrons and protons have a mass of 1amu.

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