niels bohr developed the nuclear model of the atom.
niels bohr developed the nuclear model of the atom.
who developed the nuclear model of the atom?
niels bohr
among the first to study quantum phenomena in nature were arthur compton, c. v. raman, and pieter zeeman, each of whom has a quantum effect named after him. robert andrews millikan studied the photoelectric effect experimentally, and albert einstein developed a theory for it. at the same time, ernest rutherford experimentally discovered the nuclear model of the atom, for which niels bohr developed his theory of the atomic structure, which was later confirmed by the experiments of henry moseley. in 1913, peter debye extended niels bohr's theory of atomic structure, introducing elliptical orbits, a concept also introduced by arnold sommerfeld. this phase is known as old quantum theory.
quantum mechanics
moseley's law is an empirical law concerning the characteristic x-rays that are emitted by atoms. the law was discovered and published by the english physicist henry moseley in 1913. it is historically important in quantitatively justifying the conception of the nuclear model of the atom, with all, or nearly all, positive charges of the atom located in the nucleus, and associated on an integer basis with atomic number. until moseley's work, "atomic number" was merely an element's place in the periodic table, and was not known to be associated with any measurable physical quantity. moseley was able to show that the frequencies of certain characteristic x-rays emitted from chemical elements are proportional to the square of a number which was close to the element's atomic number; a finding which supported van den broek and bohr's model of the atom in which the atomic number is the same as the number of positive charges in the nucleus of the atom. in brief, the law states that the square root of the frequency of the emitted x-ray is proportional to the atomic number.
moseley's law