STANDARDChemistry-Mole Concept
STANDARD Chemistry Average Atomic Mass MCQ Question
Type: MCQ-numerical-Medium
For every one ³⁷Cl isotope there are three ³⁵Cl isotopes in a sample of chlorine. What will be the average atomic mass of chlorine?
A
35
B
37
C
35.5
D
35.6
Correct Answer
Option C
Detailed Explanation
The average atomic mass is calculated by the weighted average of the isotopes: (3×35 + 37×1) / 4 = 35.5.
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