The isotope cobalt-60 has a nuclear mass of 59.933820 u. Calculate the mass defect of cobalt-60 using the following information: Mass of Proton: 1.007825 u Mass of Neutron: 1.008665 u 1 u

The mass defect of cobalt-60 is 0.56307 u.

Explanation:

The isotope Cobalt-60 has a nuclear mass of 59.933820 u

Mass of a Proton: 1.007825 u

Mass of a Neutron: 1.008665 u

1 u = 931.5 MeV

We take the PARTICLE masses of  27  protons

, and  33  neutrons.

(Excluding mass of Electrons)

∴ 27 × 1.007825 u. + 33 × 1.008655 u. - 59.933820 u. = 0.56307 u.

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