Convert Atomic mass unit [u] to Neutron mass Online | Free weight-and-mass Converter

Atomic Mass Unit [u]

The atomic mass unit (u), also known as the unified atomic mass unit or dalton (Da), is a standard unit of mass used to express atomic and molecular weights.

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  1 u = 1/12 the mass of a carbon-12 atom

  
  
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  1 u ≈ 1.66053906660 × 10⁻²⁷ kilograms

  
  
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  Symbol: u or Da

  
  

Key Facts:

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  Used to measure the mass of atoms, molecules, and subatomic particles

  
  
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  1 hydrogen atom ≈ 1 u

  
  
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  Mass of a proton ≈ 1.007 u, neutron ≈ 1.008 u

  
  
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  Simplifies comparison of atomic-scale masses in chemistry and physics

  
  

The atomic mass unit provides a convenient and consistent way to express and compare very small masses at the atomic and molecular scale.

Neutron Mass

The neutron is a neutral subatomic particle found in the nucleus of atoms. Its rest mass is approximately 1.675 × 10⁻²⁷ kilograms (or about 939.6 MeV/c² in energy units).

Neutrons, together with protons, form the atomic nucleus and are essential for the stability of most atoms.

Summary:

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  Rest mass ≈ 1.675 × 10⁻²⁷ kg

  
  
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  Equivalent to about 939.6 MeV/c²

  
  
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  Neutral particle found in atomic nuclei