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Carbon-14 is unstable and decays to a differentnucleus(known as the daughter nucleusof the decay) along with...

Carbon-14 is unstable and decays to a differentnucleus(known as the daughter nucleusof the decay) along with an electron and an antineutrino (a particle with zero charge and virtually zero mass). The energy released in this decay (known as the Q-value) is found to be Q = 0.156476 MeV.

Find the atomic number, the mass number, and the chemical symbol for the daughter nucleus of this decay.

What is the mass of the daughter nucleus (in u)? [Hint: First find the mass of the Carbon-14 nucleus. Then use conservation of energy, setting the initial energy (just the rest-mass energy of the Carbon-14 nucleus) equal to the final energy (the rest-mass energy of the daughter nucleus and the electron along with the energy released in the decay).]

Consider the element cobalt, which has Z = 27.

Use Aufbau/Madelung’s rule to determine the ground state electron configuration of cobalt. Then use Hund’s rule to show one possible lowest - energy configuration of how the electrons fill the orbitals of the unfilled subshell.

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