Niels Bohr contributed the quantum theory of atomic structure which basically states that an atom emits electromagnetic radiation only when an electron changes from one energy level to another, thereby changing our understanding of atomic "shells" to think of them more as energy levels that are to some extent inter-navigable by the electrons. He based his theories on the extensive work of Max Planck and Ernest Rutherford and contributed greatly to today's research of quantum physics which is our future.
Yes, he developed the first theory that correctly explained the photoelectric effect. This involved both the properties of photons and atoms.
He was actually awarded his Nobel Prize for this paper and his paper on Brownian motion, not Relativity (which was considered too revolutionary).
Based on conversations with Rutherford Niels Borh developed the Bohr nuclear model of the Atom. It is the one you have met in elementary school where Protons and Neutrons form a core with electrons circling in fixed orbits around the core. The orbits explained (some kind of) radiation which had hitherto been a mystery.
Einstein has contibuted to demonstrate the atomic transition.
photons
atoms, molecules, neutrons, neutrinos, photons and others
because excite of gaseous atoms emit photons .
Photons have no charge, no rest mass and travel at the speed of light throuh a vacuum. Electrons have a charge of -1, have rest mass and are part of atoms.
absorbed by electrons that move to higher energy levels
photons
photons
EM waves are not made out of atoms -- they come in "chunks" called photons. But photons and atoms are completely different things. The statement, "light is composed of many atoms" is almost completely wrong.
Apex Light is made of photons.
Apex Light is made of photons.
Aubrey Graham and Sean Anderson
Einstein discovered that atoms had protons and neutrons.
Gamma rays. Gamma rays are photons, but very high energy photons. They are the photons generated by processes in the nuclei of atoms.
E=mc², Einstein's Theory of Relativity and then in 1905 Einstein came up with the concept that light is made up of particles called photons.
Einstein, and he used the theory to describe the photoelectric effect.
he described light as little packets called photons
heat excites atoms and photons are released