what is atomic mass ?
yeah , I also want the power of seeing ghosts many types of terrible incidence is happening with me that's why I am not afraid of ghost.
And I'm sleeping alone in a room .
And can stay a line in a house.
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The atomic mass is the mass of an atom. Although the SI unit of mass is the kilogram, atomic mass is often expressed in the non-SI unit dalton where 1 dalton is defined as 1⁄12 of the mass of a single carbon-12 atom, at rest.
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