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Mass spectrometry of elements

Chemistry • Atoms & Subatomic Particles • Knowledge-Based • 1 questions

Mass spectrometry of elements Knowledge-Based Download PDF

Chemistry · Atomic Structure · Chemistry · Atoms & Subatomic Particles

1 Chemistry practice questions on Mass spectrometry of elements. Questions that assess core concepts and understanding.

Questions

  1. 1.

    A naturally occurring element X has two stable isotopes detected by mass spectrometry: 69X^{69}\text{X} with an isotopic mass of 68.93 amu and a relative abundance of 60.11%, and 71X^{71}\text{X} with an isotopic mass of 70.92 amu and a relative abundance of 39.89%. What is the average atomic mass of element X?

    • A) 69.93 amu
    • B) 69.72 amu
    • C) 70.12 amu
    • D) 70.92 amu