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Nuclei of the same mass number but different Z are isobars. (1) Calculate the bonding energies...

Nuclei of the same mass number but different Z are isobars. (1) Calculate the bonding energies per nucleon for the isobars boron-12, carbon-12, and nitrogen-12. (2) In which of the terms of the semi-empirical binding energy formula do these binding energies differ, calculate the differences.

Potassium-40 has a half life of 1.26*10^9 years, decaying to calcium-40 and argon-40 in ratio of 8.54 to 1. if a rock sample comtained no argon when it formed a solid but now contains one argon-40 atom for every potassium-40 atom, how old is the rock?

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genius_generous answered 2 years ago
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