Spectrometry

The video tutorial explains isotopes, their discovery through mass spectrometry, and the technique's applications in chemical research, pharmaceuticals, and forensic science. It details the mass spectrometry process, including vaporization, ionization, and deflection of ions, and how it helps identify isotopes and their abundance. The tutorial concludes by highlighting the importance of mass spectrometry in identifying compounds, even from small samples.

What are isotopes?

• Atoms with the same number of neutrons but different protons

• Atoms with the same number of protons but different neutrons

• Atoms with different numbers of protons and neutrons

• Atoms with the same number of electrons but different protons

Which technique is used to discover isotopes?

• Chromatography

• Electrophoresis

• Mass Spectrometry

• Spectrophotometry

What is the first step in the mass spectrometry process?

• Ionization

• Vaporization

• Deflection

• Acceleration

How does the mass-to-charge ratio affect ion deflection in mass spectrometry?

• Ions with a small mass-to-charge ratio are deflected less

• Ions with a large mass-to-charge ratio are deflected more

• Ions with a small mass-to-charge ratio are deflected more

• Ions with a large mass-to-charge ratio are deflected less

What information can the height of a peak in a mass spectrum provide?

• The charge of the ion

• The speed of the ion

• The relative abundance of the isotope

• The color of the ion