Question

The device used for measuring the mass of atoms and molecules is the

• A. spring balance
• B. torsional balance
• C. mass spectrograph
• D. common balance

Answer 1

Answer: (C)

mass spectrograph

The device used for measuring the mass of atoms and molecules is mass spectrograph.
It measures the mass-to-charge ratio (m/e) of one or more molecules present in a sample which finally leads to the determination of the mass of atoms and molecules.