Energy Level Transitions. The diagram below shows five trans…
Energy Level Transitions. The diagram below shows five transitions (labeled with capital letters A through E) representing an electron moving between energy levels in a hydrogen atom. electron jumps.jpg Which transition could represent an atom that absorbs a photon with 10.2 eV of energy?
Read DetailsYou have a sample rock bearing the unstable isotope potassiu…
You have a sample rock bearing the unstable isotope potassium-40 (40K) which decays into the stable isotope argon-40 (40Ar) over the course of a 1.3-billion year half life. In your sample you analyze the two isotopes and find that you have 8 g of 40K. The 40Ar analysis indicates that the sample originally started with 32 g of 40K. What is the age of this sample in years?
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