Text 15 В - раздел Образование, Part One THE PREDICATE Прочтите Текст Про Себя (Контрольное Время Чтения — 3 Минуты). The Bohr Theor...
Прочтите текст про себя (контрольное время чтения — 3 минуты). The Bohr Theory of the Hydrogen Atom
Most our knowledge of the electronic structure of atoms has been obtained by the study of the light given out by atoms when they arc excited by high temperature or by an clcctric arc or spark. The light that is emitted by atoms of a given substancc can be rcfractcd or diffractcd into a distinctive pattern of lines of certain frequencies; such a distinctive pattern of lines is said to be the line spectrum of the atom.
The careful study of line spectra began about 1880. Early investigators made some progress in the interpretation of spectra, in recognizing regularities in the frequencies of the lines: the frequencies of the spectral lines of the hydrogen atom, for example, show an especially simple relationship with one another. It was not until 1913, however, that the interpretation of the spectrum of hydrogen in terms of the clcctronic structure of the hydrogen atom was achieved. In that year, die Danish physicist Niels Bohr (1885-1962) successfully applied the quantum theory to this problem, and laid the basis for the extraordinary advance in our understanding of the nature of matter that has been made since then.
