Size of the Nucleus: Estimate the mass of a nucleus with radius 2.8 ×10-15 m. (1 u = 1.6605 × 10-27 kg)

A. about 2.1 × 10-26 kg
B. about 7.5 × 10-27 kg
C. about 2.3 × 10-26 kg
D. about 4.7 × 10-26 kg


Answer: A

Physics & Space Science

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