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Chemistry, 30.03.2021 18:30 pilarmonsivais

I will brainlist correct answers you An individual proton has mass 1.007825 amu, and an individual neutron has mass 1.008665 amu, and the observed atomic mass gadolinium-157 is 156.92396 scammers will be reported

A. -1.38269 amu

B. 1.38269 amu

C. -1.35833 amu

D. 1.35833 amu

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