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HarryWertM
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Creating metallic hydrogen has proved more difficult than expected. One explanation would be that the Bohr radius of Hydrogen is smaller than expected. Is there any other evidence of an error in Bohr radius predictions?
HarryWertM said:One explanation would be that the Bohr radius of Hydrogen is smaller than expected.
Is there any other evidence of an error in Bohr radius predictions?
HarryWertM said:Says who? Says me. Metallic Hydrogen is expected to be produced by squeezing hydrogen under such high pressure that the nuclei are closer than the Bohr radius, leaving no space for normal electron orbits thereby forcing them into a kind of 'lattice fluid' - possibly exhibiting superconductivity.
If the Bohr radius is a 'theoretical value based on...[an idealized atom]...' my question is simply 'Is the theoretical basis of the Bohr radius validated/invalidated by other experiment?'
HarryWertM said:Are there experiments besides the hunt for metallic hydrogen which challenge simple quantum theory such as the Bohr model?
I know there are experiments with Rydberg atoms which are atypical but in no way challenging to quantum theory. From pop-sci sources [Wikipedia; LLNL news] I have read the story of metallic Hydrogen experiments which is believed to involve electron paths drastically unlike the Bohr model.
HarryWertM said:Are there experiments besides the hunt for metallic hydrogen which challenge simple quantum theory such as the Bohr model?
HarryWertM said:Also there have been dramatic changes in [somebody's] purely theoretical prediction of required pressure, making it hard to claim one single, unchanged theory has remained unchallenged last 40 years.
The Bohr radius is a physical constant that represents the size of the smallest orbit of an electron around the nucleus of a hydrogen atom. It is approximately equal to 0.529 angstroms or 5.29 x 10^-11 meters.
Validating the Bohr radius is important because it is a fundamental constant in quantum mechanics and has important implications for understanding the behavior of atoms and molecules. It also plays a crucial role in determining the properties of metallic hydrogen.
The main challenges in creating metallic hydrogen include achieving extremely high pressures and temperatures, as well as preventing the hydrogen from recombining into molecules. Additionally, accurately measuring the properties of metallic hydrogen is also a challenge.
The Bohr radius is a crucial factor in determining the density of hydrogen at extremely high pressures. This density is a key component in creating metallic hydrogen, as it is one of the defining characteristics of a metal.
The Bohr radius can be experimentally validated through spectroscopy techniques, such as X-ray diffraction or Raman spectroscopy. These methods can accurately measure the distances between atoms in a sample of hydrogen and confirm the predicted value of the Bohr radius.