Neco 2025 Chemistry Question 40
Practice objective / multiple choice question 40 from the 2025 Neco Chemistry examination.
An element has two naturally occurring isotopes. Isotope A has a mass of \(35\ \text{u}\) and an abundance of \(75\%\). Isotope B has a mass of \(37\ \text{u}\) and an unknown abundance. The average atomic mass of the element is \(35.5\ \text{u}\). Determine the percent abundance of isotope B.
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About This Question
This is Neco 2025 Chemistry Question 40. It is one of the objective questions from the 2025 Neco Chemistry examination.
Difficulty level: Easy .
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