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.