Igcse Model Questions Vol1 2020 Chemistry Question 12

Practice objective / multiple choice question 12 from the 2020 Igcse Model Questions Vol1 Chemistry examination.

Igcse Model Questions Vol1 2020 Chemistry Objective / Multiple Choice Easy Difficulty
Question 12 IGCSE_MODEL_QUESTIONS_VOL1 • 2020 • CHEMISTRY • objective

An element with atomic number 12 (magnesium) occurs naturally as two stable isotopes, \(^{24}\mathrm{Mg}\) (atomic mass 23.985 u) and \(^{26}\mathrm{Mg}\) (atomic mass 25.983 u). The average atomic mass of magnesium is 24.305 u. Determine the percent abundance of \(^{24}\mathrm{Mg}\) in natural magnesium.

Answer Options

A. 86%
B. 80%
Correct Answer C. 84%
D. 90%
Correct Answer
C
Correct Option:
84%

About This Question

This is Igcse Model Questions Vol1 2020 Chemistry Question 12. It is one of the objective questions from the 2020 Igcse Model Questions Vol1 Chemistry examination.

Difficulty level: Easy .

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