Calculate the mass defect of the fluorine nucleus 19/9F . The mass 19/9F of neutral is equal to 18.998403 atomic mass units. Calculate the binding energy Eb of the fluorine nucleus 19/9F . Express your answer in millions of electron volts to four significant figures. Calculate the binding energy per nucleon of the fluorine nucleus 19/9F Calculate the mass defect of the helium nucleus 4/2He . The mass of neutral 4/2He is given by Mhe= 4.002603u . Calculate the binding energy of Eb the helium nucleus 4/2He Calculate the binding energy per nucleon of the helium nucleus 4/2He .