atomic mass

Frequency: 6.57.3 per million words

Refers to the mass of an atom, typically expressed in atomic mass units.

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Examples (20)

  • The atomic mass of an element is the average mass of its atoms.
  • The periodic table lists the atomic mass of each element.
  • Do you know the atomic mass of carbon?
  • Scientists use spectroscopy to determine the atomic mass of isotopes.
  • Students in chemistry class learned to calculate the atomic mass of an isotope.
  • Understanding atomic mass is fundamental to stoichiometry.
  • You can find the atomic mass listed on the periodic table for each element.
  • The atomic mass unit (amu) is used to express the mass of atoms.
  • The standard unit for indicating atomic mass is the unified atomic mass unit (u).
  • Deuterium has a higher atomic mass than protium.
  • John Dalton was one of the first scientists to propose a table of relative atomic mass.
  • The average atomic mass of an element accounts for its isotopes.
  • The atomic mass of helium is significantly less than that of oxygen.
  • Calculating the atomic mass involves summing protons, neutrons, and electrons.
  • It's important not to confuse atomic mass with the atomic number.
  • Early chemists struggled to accurately measure atomic mass.
  • A mass spectrometer is a device used to determine the atomic mass of individual atoms.
  • The concept of atomic mass evolved significantly with quantum mechanics.
  • The slight difference between the atomic mass and the mass number is due to the mass defect.
  • Precise measurements of atomic mass are crucial in nuclear physics.