Multiple Choice
You discover a new element which consists of two isotopes. The first isotope, 243X (mass = 242.45 u) comprises 40.000% of the total. The second isotope, 248X (mass = 247.11 u) accounts for the rest. What would be the average atomic mass for your new element?
A) 242.45 u
B) 244.32 u
C) 245.25
D) 247.11
Correct Answer:

Verified
Correct Answer:
Verified
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