Kk6i7bbielaS Kk6i7bbielaS

22-04-2016
Chemistry

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calculate the mass defect of the nitrogen nucleus 14 7n. the mass mn of neutral 14 7n is equal to 14.003074 atomic mass units.

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andriansp andriansp

03-05-2016

Proton mass = 1.00728 amu
neutron mass = 1.0086 amu
electron mass = 0.000549 amu

so the mass is :
(7 * 1.00728) - (7 * 1.0086) - (7 * 0.000549) - 14.003074

= 0.11235 amu

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