A Sample of an Element Consists of Two Isotopes

question 82

Multiple Choice

A sample of an element consists of two isotopes.The percent abundance of one of the isotopes is 75.0%.What is the percent abundance of the other isotope?

• A) 62.5%
• B) 37.5%
• C) 12.5%
• D) 75.0%
• E) 25.0%

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