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UUID | 1b3c0801-0a7e-11e3-8615-bc764e049c3d |
The Mass of an Alpha Particle, , expressed in atomic units (u) is 4.0012 u.
An alpha particle, , is two protons and two neutrons bound together as a particle identical to a helium nucleus.
This constant is specified with a standard uncertainty (standard deviation) of: 0.00000029E-27 kg
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