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violetbobo
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Bohr radius The Bohr radius, symbolized a0, is the mean RADIUS of the orbit of an electron around the nucleus of a hydrogen atom at its ground state (lowest-energy level). The value of this radius is a physical constant; a0 is approximately equal to 5.29177 x 10-11 meter (m). This is 5.29177 x 10-9 centimeter (cm) or 0.0529177 nanometer (nm). the Bohr radius has a value of 5.291772108(18)¡Á10−11 m (i.e., approximately 53 pm or 0.53 ångströms) My understanding: Bohr radius, the mean RADIUS of the orbit of an electron around the nucleus of a hydrogen atom at its ground state (lowest-energy level), is just a physical constant. It's different from the concepts of ionic radius, covalent radius, or vanderWaal's radius. |
2Â¥2007-04-15 16:10:57
pangzier
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3Â¥2007-04-21 14:19:25
hatcp
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4Â¥2007-04-22 10:59:25













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