Can someone please help me with my Chemistry homework?
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It can identify the atom as to what element it is. Each element gives a unique light spectrum. That's how spectroscopy works for identifying the elements that make up a certain substance.
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Atoms release light with energies (and thus wavelengths) corresponding to the electric potential difference between valence shells. When electrons relax to a lower energy state, they release the excess energy in the form of photons. This energy is characteristic to a specific element so identification is possible by analyzing the wavelength of the emitted light.
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It is proportional to the energy level of electrons. Plasma is a form of matter in which the atoms have acquired enough energy to exchange electrons. Besides the electrons moving between atoms, they can also jump into a higher orbital. When they fall back into their original orbital they emit a photon of light. The photon's frequency is proportional to the energy difference between the two orbitals. If this emission is passed through a prism it forms a series of thin bands of light of several colors. Each band represents electrons jumping between orbitals. Plasma is used in many forms of lighting. Fluorescent lights use Mercury vapor, whose plasma emits light in ultraviolet. This is turned into visible light by the phosphorescent coat inside the tube. Sodium vapor street lights are orange yellow because this is the major frequency output by Sodium plasma. Each pure element has a unique spectrum and these spectra were used to identify new elements. This was particularly true of the rare earth elements which were very difficult to separate chemically. The appearance of a new band in the spectrum indicated the presence of an unknown element. Francium is a radioactive element whose half life is under a minute. It is known only from its emission spectrum.
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gosh im glad i dont go to schoo anymore!!
hope the link helps!
hope the link helps!