Convert Atomic mass unit to Electron mass (rest)
Please provide values below to convert Atomic mass unit [u] to Electron mass (rest) [m_e], or Convert Electron mass (rest) to Atomic mass unit.
How to Convert Atomic Mass Unit to Electron Mass (Rest)
1 u = 1822.88848621731 m_e
Example: convert 15 u to m_e:
15 u = 15 × 1822.88848621731 m_e = 27343.3272932597 m_e
Atomic Mass Unit to Electron Mass (Rest) Conversion Table
| Atomic mass unit | Electron mass (rest) |
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Atomic Mass Unit
The atomic mass unit (u) is a standard unit of mass used to express atomic and molecular weights, defined as one twelfth of the mass of a carbon-12 atom.
History/Origin
The atomic mass unit was introduced in the early 20th century to provide a convenient scale for atomic weights. It was originally based on the mass of hydrogen but was later standardized to be one twelfth of the mass of a carbon-12 atom, which was adopted as a reference in 1961 by the IUPAC.
Current Use
The atomic mass unit is widely used in chemistry and physics to express atomic and molecular masses, facilitating calculations in molecular chemistry, nuclear physics, and related fields.
Electron Mass (Rest)
The electron mass (rest) is the invariant mass of an electron, approximately 9.10938356 × 10⁻³¹ kilograms, representing the mass of an electron at rest.
History/Origin
The electron mass was first measured in the early 20th century through experiments involving cathode rays and later refined with advancements in particle physics, establishing it as a fundamental constant in physics.
Current Use
The electron mass is used in calculations involving atomic and subatomic physics, quantum mechanics, and in defining units related to particle properties, such as in the 'Weight and Mass' converter for scientific and educational purposes.