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NEUTRON

The neutron is a subatomic particle, symbol n or n⁰ , which has a neutral charge, and a mass slightly greater than that of a proton. Protons and neutrons constitute the nuclei of atoms.

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MEAN LIFETIME

879.4(6) s (free)

200px-NuclearReaction.svg.png

ELECTRIC CHARGE

0 e; (−2±8)×10−22 e (experimental limits)

SYMBOL

n, n0, N0

COMPOSITION 

1 up quark, 2 down quarks

ELECTRIC DIPOLE MOMENT

< 2.9×10−26 e⋅cm (experimental upper limit)

ELECTRIC POLARIZABILITY

1.16(15)×10−3 fm3

MASS

1.67262192369(51)×10−27

kg;938.27208816(29)MeV/c2; 1.007276466621(53) u

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