Multiple Choice
How many atoms of rubidium-85 are in 87.2 g of rubidium? Rubidium-85 is 72.2 % abundant.
A) 5.16 × 1046 atoms
B) 4.46 × 1023 atoms
C) 8.51 × 1023 atoms
D) 6.14 × 1022 atoms
E) 1.02 × 1024 atoms
Correct Answer:
Verified
Correct Answer:
Verified
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