Chemistry, 07.09.2021 18:30, TrudnEli9904
Tellurium consists of 3 common isotopes. Half of tellurium atoms have a mass of 127, and another 0.45 of tellurium atoms weigh 128. What is the mass of the remaining isotope? The atomic mass of tellurium is 127.6.
A) 126
B) 127
C) 129
D) 130
E) 131
Answers: 2
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Stage in which a star’s outer layers have started to cool and grow outward?
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