Osmium has atomic number 76. A particular isotope of osmium has an atomic mass of 191.961 u. Which symbol correctly represents this isotope?
A)
B)
C)
D)
E)
Correct Answer:
Verified
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Q20: What is the SI unit for activity?
A)Ci
B)counts/min
C)Hz
D)Gy
E)Bq
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