Chemistry, 30.03.2021 18:20, sarahhN7534

HELP PLEASE 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 A. -1.38269 amu
B. 1.38269 amu
C. -1.35833 amu
D. 1.35833 amu

Answers: 3

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HELP PLEASE An individual proton has mass 1.007825 amu, and an individual neutron has mass 1.008665...