 
 <prompt> Wetin be di first correct quantization rules for electrons via Schrodinger or Heisenberg method? Given di previous question, write a context wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: ```Bohr still introduce di quantity, wey dem now sabi as di reduced Planck constant, as di quantum of angular momentum. At first, Bohr think say dis na di angular momentum of each electron for inside atom: dis one come show say e no correct and, despite developments by Sommerfeld and others, an accurate description of di electron angular momentum prove say e pass di Bohr model. Di correct quantization rules for electrons – wey di energy reduce reach di Bohr model equation for di case of di hydrogen atom – dem give by Heisenberg's matrix mechanics for 1925 and di Schrödinger wave equation for 1926: di reduced Planck constant still remain di fundamental quantum of angular momentum. For modern terms, if J na di total angular momentum of a system wey get rotational invariance, and Jz di angular momentum wey dem measure along any given direction, dis quantities fit only get di values``` 