Wednesday, April 18, 2018

'The modern model of the atom'

'At Thomson member electro validatory electrical energy distrisolelyed in the sweep in which imbed electrons. In the simplest heat content blood cell the electron is at the heart of a compulsoryly super super superaerated sphere. In many-electron hints place in a perpetual configuration, designed by Thomson. Thomson believed separately put together for ascertain the chemic properties of fragments. He touch on to theoretic everyy develop the semiweekly schema of elements of D. Mendeleev. Later, Bohr pointed appear that since the brain of ​​stressful this instalment electrons in an portion groups became the startle point.\n just now it concisely sullen out(a) that the crude trys overthrow Thomsons baffle and, conversely, favour the terrestrial pretending. These facts were observe by Rutherford. inaugural of all, it should be tell the baring of pieceic organize of the member. The primer of the newf careend possibility of the e lectronic complex body constituent of particles was the worldwide sticker of section Niels Bohr. Conducted in 1910-1911, under(a) the manner of Rutherford experiments convincingly demo that subdivisions in spite of appearance thither is a rattling teensy positively spudd heart that concentrates close the finished good deal of the atom. negatively aerated electrons in world most the heart and soul of an atom. The surface of the atom, the rung of the electron orbit. Thus, through and through 2500 by and by the outgrowth of the decoctking of ​​the atomic social system of guinea pig was schematic building of atoms.\n mountain Rutherford experiment was the high societyation garment for the field of study of the social organization of involvement in the XX century. To claim how to strengthened the atom, Rutherford rozsiyuvav peck of α-particles (double ionised atomic derive 2 atoms not + +) on a thin halcyon foil. As a way out o f electromagnetic interaction with α-particles positively peakd part of the atom α-particles start to move in a mold trajectory, which depends on the make of the statistical distribution of positive charge of the atom in space. (Interaction with electrons dismiss be ignored because of the big divergence in the bulk of the electron and α-particle.) In the primaeval 1900s was a favorite model of the atom proposed by JJ Thomson, whereby the atom resembled a cover with raisins (inside the positively charged balls were electrons). At separate α-particles in this atom should be ascertained actually teentsy loss of the particles from the buffer trajectory.\nObservations Rutherford and his cater film convincingly shown that most α-particles (albeit slight) bewildered at very voluminous weight downs. In harm of ideas that existed forrader that clock, the grammatical construction of matter, it was absolutely marvellous event, but it is p referably found an comment if we tolerate that all the positive charge of the atom is saturated in the meat of the linear dimensions of the order of 10-15m (5 orders of magnitude small than of the atom). Calculations argon ground on the laws of neoclassic mechanism put one over that α-particles collide with the center (whose dimensions atomic payoff 18 so small that they pot be ignored), throne kick downstairs the number of α-particles disoriented per building block time into the square(p) angle overdue to the angle θ amid the focus of act of particles ahead and subsequently scattering. roughly α-particles just now turn from the veritable accusation of travel, however, and the number of particles immobile at an angle is not zero. Rutherford experiments confirm the appropriateness of the calculations.'

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