Atomic Structure and Periodicity
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Chemistry Q & A Practice
1 of 5 exam-style Chemistry exercises in this topic
The mass spectrum of element X contains two isotope peaks.
Isotope mass
Relative abundance
63
69.2%
65
30.8%
Calculate the relative atomic mass of X.
Select one option.
A
64.4
B
63.5
C
64.0
D
63.6
E
63.0
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