Build your practice set

Find exactly what you need to practice.

Search across chemistry topics, concepts, chapters, and questions.

Viewing Shared Question View All Feed

Stoichiometry #Atomic Structure #Isotopes

1

Choose the best answer

An element has isotopes of 30 u (80%) and 40 u (20%). What is its relative atomic mass?

Verified Answer & Explanation⌄

Correct Answer: A) 32

Concept Explanation

Relative atomic mass = (30×0.80) + (40×0.20) = 24 + 8 = 32.

Topic: StoichiometryPractice more Stoichiometry MCQs →