There are numerous mathematically equivalent formulations of quantum mechanics. One of the oldest and most commonly used formulations is the transformation theory proposed by Cambridge theoretical physicist Paul Dirac, which unifies and generalizes the two earliest formulations of quantum mechanics, matrix mechanics (invented by Werner Heisenberg)and wave mechanics (invented by Erwin Schrödinger).
Max Planck first came up with the idea of quanta. Albert Einstein later showed him he was correct that light was emitted in quanta and that it also absorbed in quanta. This is how he explained the photoelectric effect.
Max Planck first proposed the thesis of energy (in his specific case, light energy) coming in packets with a size that can not become any smaller. In other words, he first proposed that our Universe permits us to have (about) 2 eV of red light or 4 eV of red light, but that we could not have 1 eV of red light.
Einstein proposed that light was made of quanta. He used the proposition to explain the photoelectric effect.
Quantum Theory was proposed by Max planck.
Louis deBroglie
niels bohr
Max Plank
Max Planck
spectroscopy
yes
Yes because it only have light in common?
because excite of gaseous atoms emit photons .
Due to electron transitions in atoms some chemical elements emit a characteristic colored flame.
You think to quanta.
Atoms emit energy as light when electrons move to a lower energy level
Classical they will emit electromagnetic waves (light and radio waves). Quantum effects might limit this since if the electrons are in the ground state (or all lower states are occupied) they can not emit any photons (quanta of electromagnetic waves).
yes, they do emit
radioactive
He called the packets photons.
spectroscopy
No. Many atoms do not decay at all. Many that do undergo alpha decay. A few atoms emit neutron radiation.
Yes! All things are composed of small packets of energy, known as quanta, which include electrons, quarks, photons etc etc., and it is these quanta that form all of the building blocks of matter, i.e. atoms and molecules.
spectroscopy
Spectroscopy
yes