What is average atomic mass of chlorine calculated from its isotopes Chlorine-35 (75%) and Chlorine-37 (25%)?

Type: MCQ • Marks: 1

A. 35.0 u

B. 37.0 u

C. 36.0 u

D. 35.5 u

Explanation

Average atomic mass = (35 × 0.75) + (37 × 0.25) = 26.25 + 9.25 = 35.5 u.

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Class 9th Science (MCQ)

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