ANSWERS: 2
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A proton weighs 1.007276 atomic mass units (AMU). Because an AMU is equal to 1.63 x 10-29 (0.00000000000000000000000000163) kilonewtons (kN), a proton weights just slightly more: that is, 1.64 x 10-29 (or 0.00000000000000000000000000164) kN. A kN is equivalent to 224.81 U.S. pounds.
Source:
General Chemistry Online: Glossary: Atoms, elements, and ions
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rsnehathanks
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I suggest use unit converter to get accurate measurements
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