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When electrons in an atom give up energy by dropping from a higher energy state to a lower energy state, that energy is emitted as photons of light whose frequencies are the lost energy/ Placvk's constant.
As the atom can have several levels of energy, a spectrum of several lines is produced.
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What is the difference between phosphorescent and fluorescent materials?
Phosphorescent materials continue to emit light after the excitation source is removed, while fluorescent materials only emit light while the excitation source is present.
Do argon turn purple when electricity passes through it?
Yes, argon can glow a purple color when electricity passes through it, a phenomenon known as the "argon glow discharge." This is due to the excitation of argon atoms by the electric current, causing them to emit light in the visible spectrum, often appearing as a bluish-purple color.
How do bubbles emit light?
Bubbles can emit light when they are filled with a gas that is excited by an external energy source, such as sound waves or ultraviolet light. This excitation causes the gas molecules to release light photons, which creates the glowing effect seen in some bubbles.
Atoms emit energy as light when?
they transition from a higher energy state to a lower energy state. This emitted energy appears as light and can vary in wavelength depending on the elements involved and the specific energy levels of the transitions.
Descrbe What happen at the atomic level when a substance fluoresces under UV light?
uv light causes.... excitation of electrons of atoms.... leading two phenomenon absorption frequency emmision frequency... read about the principles involoved u will get to know urself.....!!
Why does cupric nitrate burn green?
Cupric nitrate burns green because copper ions emit a green flame when they are heated. This phenomenon is due to the excitation and subsequent de-excitation of electrons in the copper atoms, producing green light.
What is the difference between phosphorescent and fluorescent materials?
Phosphorescent materials continue to emit light after the excitation source is removed, while fluorescent materials only emit light while the excitation source is present.
What color color flame does xenon burn?
Xenon typically burns with a bluish-white flame when ignited. This color is due to the excitation of xenon atoms by the heat, which causes them to emit light in the visible spectrum.
Do argon turn purple when electricity passes through it?
Yes, argon can glow a purple color when electricity passes through it, a phenomenon known as the "argon glow discharge." This is due to the excitation of argon atoms by the electric current, causing them to emit light in the visible spectrum, often appearing as a bluish-purple color.
When an electric current is passed through xenon gas what color does it produce?
When an electric current is passed through xenon gas, it produces a bluish color. This is due to the excitation of the xenon atoms causing them to emit light in the blue part of the spectrum.
Definitions of phosphorescense and fluorescense?
Flourescence is the ability of a material to emit light instantaneously in responses to excitation. Immediately emits light. Phosphorescence is the ability of a material to delay emission of light in response to excitation. Delayed emission of light.
What are atoms that emit particles and energy from their nuclei?
radioactive
What happens to the atoms that are hit by the electron beam?
When atoms are hit by an electron beam, they can undergo ionization, where electrons are ejected from the atoms, resulting in the formation of positive ions. This process can lead to various effects, such as excitation of the atoms, which may cause them to emit light, or even fragmentation, where the atoms break apart into smaller particles. Additionally, the energy transferred from the electron beam can lead to thermal effects, causing localized heating in the material. Overall, the interaction alters the electronic structure and physical state of the target atoms.
What do radioactive materials do?
The atoms become some other type of atom. In the process, they emit some radiation, which contains energy. The radiation they emit typically include one or more of the following: alpha particles (helium-4 nuclei), beta particles (electrons or positrons), gamma rays, and neutrinos.
What color is fluorine vapor?
Fluorine vapor is typically a pale yellowish-green color. This color comes from the excitation of the gas molecules as they absorb and emit light.
Why does calcium burn orange?
When calcium burns, the orange color is due to the excitation of electrons in the calcium atoms. The energy released as the electrons return to their ground state appears as light, in this case, the characteristic orange color. This phenomenon is similar to how fireworks emit colorful lights when certain materials are burned.
What science studies how atoms absorb and emit electromagnetic radiation is?
spectroscopy
