Science

Main features of radioactivity: [pic] [pic] [pic] swing function & Probability concentration: [pic] [pic] Bohrs toughie: [pic] The Bohr fashion model of the atom, cover an negatron quantum jumping to adjudicate state n = 1. In 1913 Niels Bohr proposed a new model of the atom that included quantal negatron mountain chains. In Bohrs model, negatrons could underpin only certain subject fields well-nigh the atomic nucleus. When an atom emitted (or absorbed) dynamism, the electron did not move in a continuous career of stairs from virtuoso force field around the nucleus to another, as mogul be anticipate classically. Instead, the electron would jump directly from one orbit to another, openhanded off the emitted light in the miscellany of a photon. The attainable energies of photons given off by apiece element were unflinching by the differences in ability amongst the orbits, and so the emission spectrum for distributively element would contain a number of lines. Bohr theorised that the angular nervous impulse, L, of an electron is quantised: [pic] where n is an integer and h is the Planck constant.

Starting from this assumption, ampere-seconds law and the equations of broadside motion show that an electron with n units of angular momentum will orbit a proton at a length r given by [pic], where ke is the century constant, m is the mass of an electron, and e is the charge of an electron. For simplicity this is draw up as [pic] where a0, called the Bohr rung, is equal to 0.0529 nm. The Bohr radius is the radius of the smallest allowed orbit. The energy of the electron blast mug also be calculated, and is given by [pic]. An electron loses energy by jumping now from its original orbit to a tear down orbit; the extra energy is emitted in the form of a photon. Conversely, an electron that absorbs a photon gains energy, hence it jumps to an orbit that is farther from the nucleus. individually photon from radiate atomic hydrogen is cod to an electron contemptible from a higher orbit, with radius rn, to a lower...If you want to subscribe to a full essay, order it on our website: Ordercustompaper.com

If you want to get a full essay, wisit our page: write my paper