Context: Bohr also introduced the quantity , now known as the reduced Planck constant, as the quantum of angular momentum. At first, Bohr thought that this was the angular momentum of each electron in an atom: this proved incorrect and, despite developments by Sommerfeld and others, an accurate description of the electron angular momentum proved beyond the Bohr model. The correct quantization rules for electrons – in which the energy reduces to the Bohr model equation in the case of the hydrogen atom – were given by Heisenberg's matrix mechanics in 1925 and the Schrödinger wave equation in 1926: the reduced Planck constant remains the fundamental quantum of angular momentum. In modern terms, if J is the total angular momentum of a system with rotational invariance, and Jz the angular momentum measured along any given direction, these quantities can only take on the values

Question: Who introduced the reduced Planck constant?
Answer: Bohr

Question: What is the reduced Planck constant also known as?
Answer: the quantity

Question: Who helped to give the correct quantization rules for electrons in 1925?
Answer: Heisenberg

Question: Who helped to give the correct quantization rules for electrons in 1926?
Answer: Schrödinger

Question: According to Heisenberg and Schrödinger, the reduced Planck constant remains what?
Answer: the fundamental quantum of angular momentum

Question: Bohr introduced what value as the quantum of angular momentum?
Answer: the reduced Planck constant

Question: What incorrect belief did Bohr hold about the reduced Planck constant?
Answer: Bohr thought that this was the angular momentum of each electron in an atom

Question: What scientist used matrix mechanics to bring electron behavior in line with the Bohr model?
Answer: Heisenberg

Question: When was the Schrödinger wave equation proposed?
Answer: 1926

Question: Who reduced the increased Planck constant?
Answer: Unanswerable

Question: What is the extended Planck constant also known as?
Answer: Unanswerable

Question:  Who helped to give the correct quantization rules for electrons in 1945?
Answer: Unanswerable

Question: Who helped to give the incorrect quantization rules for electrons in 1946?
Answer: Unanswerable

Question: What scientist used matrix mechanics to bring wave behavior against the Bohr model?
Answer: Unanswerable