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The Bohr radius ( ) is a physical constant, approximately equal to the most probable distance between the nucleus and the electron in a hydrogen atom in its ground state. It is named after Niels Bohr, due to its role in the Bohr model of an atom. Its value is 5.291 772 105 44 (82) × 10 −11 m. [1] [2]
The atomic radius of a chemical element is the distance from the center of the nucleus to the outermost shell of an electron. Since the boundary is not a well-defined physical entity, there are various non-equivalent definitions of atomic radius.
Summarize how Bohr’s quantum model of the hydrogen atom explains the radiation spectrum of atomic hydrogen. Historically, Bohr’s model of the hydrogen atom is the very first model of atomic structure that correctly explained the radiation spectra of atomic hydrogen.
30 cze 2023 · The hydrogen atom has only certain allowable radii and these radii can be predicted from the equation that relates them with each \(n\). Note that the electron must be in motion so \(n = 0\) is not allowed.
Describe the postulates of the early quantum theory for the hydrogen atom; Summarize how Bohr’s quantum model of the hydrogen atom explains the radiation spectrum of atomic hydrogen
A hydrogen atom is an atom of the chemical element hydrogen. The electrically neutral hydrogen atom contains a nucleus of a single positively charged proton and a single negatively charged electron bound to the nucleus by the Coulomb force .
The Bohr radius is a physical constant that represents the most probable distance between the electron and nucleus of a hydrogen atom at its ground state (lowest energy level). The constant's value, symbolized a 0, is approximately 5.29177210903 (80) x 10 -11 meters (m).
