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