Chemistry, 25.04.2020 05:46 mel2001love
The atomic number of Re is 75. The atomic mass of one of its isotopes is 186. How many neutrons are in an atom of this isotope?
A. 75
B.111
C. 186
D. 261
Answers: 2
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The atomic number of Re is 75. The atomic mass of one of its isotopes is 186. How many neutrons are...
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