Charles Janet: unrecognized genius of the periodic system

@article{Stewart2010CharlesJU,
  title={Charles Janet: unrecognized genius of the periodic system},
  author={Philip J. Stewart},
  journal={Foundations of Chemistry},
  year={2010},
  volume={12},
  pages={5-15}
}
  • P. Stewart
  • Published 1 April 2010
  • Philosophy
  • Foundations of Chemistry
Janet is known almost exclusively for his left-step periodic table (LSPT). A study of his writings shows him to have been a highly creative thinker and a brilliant draftsman. His approach was primarily arithmetic-geometric, but it led him to anticipate the discovery of deuterium, helium-3, transuranian elements, antimatter and energy from nuclear fusion. He recognized the (n + ℓ) rule well before Madelung and correctly placed the actinides. His controversial treatment of helium at the head of… 
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