Electron mass
Try it yourself:
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electronMass
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electronMass is the rest mass of an electron, a key constant in atomic, quantum, and electromagnetic calculations.
Use it with elementaryCharge and bohrRadius. Rest mass differs from relativistic energy; use speedOfLight only in an appropriate energy relation.
Enter electronMass on a calculator line to see its built-in value, or place the name inside a longer expression. Keep any displayed unit attached when converting or combining physical quantities, and check that every other value uses a compatible dimension.
The example above is editable, so you can replace surrounding values and test the constant in your own formula. Browse all constants to compare related values and notation.