aYou must first make it sure that when light strikes certain metals, it causes the metal surface to emit electrons, as if the force of the light kicks electrons out of the atoms. 您必须首先使它肯定,当光碰撞某些金属时,它造成金属表面散发电子,好象光的力量踢电子在原子外面。[translate]...
2) What do you mean by saying that the energy of an electron is quantized? How do you determine the energy of an electron with n = 8 in a hydrogen atom using the Bohr model? Using Bohr's equation for the allowed electron energy le...
One of the responses of an atom to the removal or supply of energy is the transition of electrons from a lower energy level to a higher energy level or the reverse. The transition depends on the amount of energy removed or supplied.
In the Bohr model, is light emitted or absorbed when an electron moves from a higher-energy orbit to a lower-energy orbit? Explain. In 1913 Neils Bohr proposed a model for the hydrogen, now known as the Bohr atom, that explained the emission...
That element will then fuse into heavier elements, like oxygen and carbon, in reactions that don't emit as much energy. Once all the helium disappears, the forces of gravity will take over, and the sun will shrink into a white dwarf. All the outer material will dissipate, leaving behind ...
Stimulated emission is different because it occurs when an atom of molecules holding onto excess energy has been stimulated to emit it as light. Albert Einstein was the first to suggest the existence of stimulated emission in a paper published in 1917. However, for many years physicists thought ...
Stimulated emission is different because it occurs when an atom or molecule holding onto excess energy has been stimulated to emit it as light. Albert Einstein was the first to suggest the existence of stimulated emission in a paper published in 1917. However, for many years physicists thought ...
You claim first of all that if an atom is in a stationary state, the electron revolves periodically but does not emit light, when, according to Maxwell's theory, it must. Next, the electron is said to jump from one orbit to the next and to emit radiation. Is this jump supposed to ...
to observers on Earth.Ultraviolet radiation from the Sun breaks down the vapor molecules into their constituents.These components can be excited by absorbing radiation from the Sun.In returning to lower-energy states, the excited atoms and ions emit light, contributing to the luminosity of the ...
5 LEDs produce twice as much light as a regular 60 watt bulb and burn for over 50,000 hours. The Department of Energy estimates LED lighting could reduce U. S. energy consumption for lighting by 29 percent by 2025. LEDs don&39;t emit heat, so they&39;re also more energy efficient....