In which of the following is resonance most likely? Show why?
598495
Between the two species, the BF3 is least likely to display resonance.  To resonate, on a chemical level, you must have two equivalent Lewis structures taht differ only in their arrangement of the electrons.  However, due to the structure of flouride ions, they are able to make one and only one bond.  Thus, no rearrangement is possible around the Boron center.  \n\nHowever, the Sulfate ion is a different story.  Both sulfur and oxygen have the ability to make multiple bonds with each other, giving the potential to have different combinations of bonds that are isoelectronic (electronically equal to one another).  So, this species would be more likeley to have resonance.  \n\nHope it helps.
223888
instability?\nchangeable?\nunstable?
633777
Maybe this explanation can help? http://en.wikipedia.org/wiki/Spectral_density
744140
A resonator is a device or system that exhibits resonance or resonant behavior. Many objects that use resonant effects are referred to simply as resonators. \nA distributed parameter resonator of the distributed network type has capacitance, inductance, and resistance which cannot be isolated into separate lumped capacitors, inductors, or resistors. The time factor of propagation of wave energy in the network is appreciable. Resonators can be of the dielectric type or magnetic type.\n\nA hollow conductor that uses resonance to amplify an electromagnetic wave is called a cavity resonator.\n\nIf you vibrate something at just the right frequency, you can get a big reaction.\nFor more please visit/click on the following link:\nhttp://www.exploratorium.edu/snacks/resonator.html
455977
200 Hertz or any integer multiple thereof.\nSo, 400 Hertz, 600 Hz, etc.. would cause it to resonate.
978796
Study of data with respect to different spectral responses
937754
Something involving atomic spectra.  For example see\nhttp://www.fas.harvard.edu/~scdiroff/lds/QuantumRelativity/StreetLampSpectra/StreetLampSpectra.html
590885
sorry friend, but this not a question with a simple answer. yes, i know somebody who can interpret nmr spectra, but it involves a lot of computation. there are even whole journals devoted to it, so if it is urgent, you have lost.
40125
(this is a confusing problem because resonance structures are supposed to show how electrons configure themselves to satisfy its most stable structure--the question didn't really do a good job of representing this idea, most likely that the teacher rather have you do a challenging problem than having to learn how to do a problem)\n1) The formal charge on N=N=O appears to be N=-1, N=+1, and O=0. \n2) The formal charge on N(triple bond)N-0 is N=0, N=+1, and O=-1. \n3) The formal charge on N-N(trible bond)O is N=-2, N=+1, and O=+1\nFirst of all, Nitrogen likes to make 3 bonds with another element and Oxygen only likes to make 2 bonds with another element.\nIt also appears obvious that the higher the formal charge, the less stable the compound is. Therefore, the 3rd structure appears least frequently.\nAs a conclustion, it is plausible to say that the overall resonance structure of N-N bonding is 112 picometer since N(triple bond)N = 110 picometer and that most of the compound likes to remain in a N(triple bond)N structure, yet some also retain N=N or even N-N structure. The average averages to a number very close to 112pm.\nSimilarly, Oxygen only likes to form 2 bonds. Therefore, the N-O bond lenght comes down to 119 since it is the average of the more stable N=O with the less stable N-O.\n\nHope that helps,\nUltimeaciax
685764
Solove the differential equation for resonance same as spring and mass or capacitor/inductor.\nM= mass of electron.\nf =qv +qvXB. depending on the restoring force.\nAny damping from the gas in the plasma?
931827
A good discussion of electrical resonance is at the following\nWikipedia web site:\n\nhttp://en.wikipedia.org/wiki/Electrical_resonance\n\nHope this helps!
142302
Resonance in the pi-electron orbitals.
79291
Resonance is the ability of a molecule to delocalize a charge. A charge within a molecule is like a "hot potato". If the charged atom can toss the charge around to a couple of its neighbors, it is able to stay in the charged state longer- thus it is more stable. Take for example a carbon with two oxygens attached to it. If one of the oxygens takes on a negative charge it can simply pass the charge to the neighboring oxygen. That oxygen then passes the charge back. The two oxygens simply toss the charge back and forth so that neither oxygen has to hold the charge for too long.
219341
In physics, resonance is the tendency of a system to absorb more energy when the frequency of the oscillations matches the system's natural frequency of vibration (its resonant frequency) than it does at other frequencies. Examples are the acoustic resonances of musical instruments, the tidal resonance of the Bay of Fundy, orbital resonance as exemplified by some moons of the solar system's gas giants, the resonance of the basilar membrane in the biological transduction of auditory input, and resonance in electronic circuits.\n\nA resonant object, whether mechanical, acoustic, or electrical, will probably have more than one resonant frequency (especially harmonics of the strongest resonance). It will be easy to vibrate at those frequencies, and more difficult to vibrate at other frequencies. It will "pick out" its resonant frequency from a complex excitation, such as an impulse or a wideband noise excitation. In effect, it is filtering out all frequencies other than its resonance.
1093403
Think of a guitar string that has been tuned by stretching the string under tension across the guitar. Depending on how the string is plucked and how much tension is in the string, different musical notes will be created by the string. These musical notes could be said to be excitation modes of that guitar string under tension. \n In a similar manner, in string theory, the elementary particles we observe in particle accelerators could be thought of as the "musical notes" or excitation modes of elementary strings. \n In string theory, as in guitar playing, the string must be stretched under tension in order to become excited. However, the strings in string theory are floating in spacetime, they aren't tied down to a guitar. Nonetheless, they have tension. The string tension in string theory is denoted by the quantity 1/(2 p a'), where a' is pronounced "alpha prime"and is equal to the square of the string length scale.
135532
You can either look it up or determine it experimentally.\nI cant get much more specific without additional details.
358443
Natural magnetic variations and decay.  It is like waves of variation.