Science has been said to be like the process of picking at loose threads. The 50 years from 1895 through 1945 showed huge advances in the sciences. These advances include fundamental discoveries of the nature of matter, how to access the energy within the atom , and numerous other threads of knowledge. Where do you see science going in your lifetime? Be sure to include comparisons to the discoveries that led to the modern model of the atom

The nuclear potential that binds protons and neutrons in the nucleus of an atom is often approximated by a square well. imagine a proton conned in an innite square well of length 105 nm, a typical nuclear diameter. calculate the wavelength and energy associated with the photon that is emitted when the proton undergoes a transition from the rst excited state (n 2) to the ground state (n 1). in what region of the electromagnetic spectrum does this wavelength belong?