1.The definition of one atomic mass unit...

1.The definition of one atomic mass unit and its value is
(a) `1/12^(th)` the mass of an atom of oxygen-16, 1amu=`1.6times10^(-19)Kg`
(b) `1/16^(th)` the mass of an atom of carbon-12,1amu = `9.1times10^(-31)Kg`
(c) `1/12^(th )` the mass of an atom of carbon-12,1amu = `1.66times10^(-27)Kg`
(d) The mass of helium nucleus, 1amu=`3.2times10^(-27)Kg`

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