ChemistryAtomic structure and bondingJAMB
Chlorine consists of 75% ³⁵Cl and 25% ³⁷Cl. Find its relative atomic mass.
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Answer: B. 35.5
(75 × 35 + 25 × 37)/100 = (2625 + 925)/100 = 35.5.
An AdmitMe practice question, written for the JAMB syllabus. Not an official past question.