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en.wikipedia.org/wiki/Resonance_(chemistry)

In chemistry, resonance is a way of describing bonding in certain molecules or ions by the combination of several contributing structures (or forms, also variously known as resonance structures or canonical structures) into a resonance hybrid (or hybrid structure) in valence bond theory.

www.chem.ucla.edu/~harding/tutorials/resonance/draw_res_str.html

Drawing contributing resonance structures. Resonance is an important feature of many organic molecules. It can have a profound influence on their structure, chemical reactions, and physical properties. Key to understanding resonance is the ability to draw contributing resonance structures and the resonance hybrid structure.

chem.libretexts.org/.../Fundamentals/Resonance_Forms

Drawing Resonance Forms. There are several things that should be checked before and after drawing the resonance forms. First know where the nonbonding electrons are, keep track of formal charges on atoms, and do not break sigma bonds. Finally, after drawing the resonance form make sure all the atoms have eight electrons in the outer shell.

www.khanacademy.org/.../v/resonance-intro-jay

Introduction to resonance structures, when they are used, and how they are drawn. If you're seeing this message, it means we're having trouble loading external resources on our website. If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

philschatz.com/chemistry-book/contents/m51051.html

is the average of a double bond and a single bond. We call the individual Lewis structures resonance forms. The actual electronic structure of the molecule (the average of the resonance forms) is called a resonance hybrid of the individual resonance forms. A double-headed arrow between Lewis structures indicates that they are resonance forms.

www.youtube.com/watch?v=MWDL5WCZBzE

https://www.thechemistrysolution.com This chemistry tutorial covers how to draw Lewis structures, when multiple resonance structures can be drawn. This tutorial has several examples of drawing ...

socratic.org/.../major-and-minor-resonance-structures

Resonance forms are ways of arranging pi electrons (double bonds, lone e-) in a molecule. Often resonance forms are unequal in energy. Major resonance forms are the more stable resonance form of a molecule that is more commonly occuring while the minor resonance structure is often less stable and therefore less commonly occuring.

www.merriam-webster.com/dictionary/resonance

Resonance Uses Beyond Sound. Many of the finest musical instruments possess a high degree of resonance which, by producing additional vibrations and echoes of the original sound, enriches and amplifies it. Violins made by the Italian masters Stradivari and Guarneri possess a quality of resonance that later violinmakers have never precisely ...

chem.libretexts.org/Bookshelves/Organic_Chemistry/Map...

Resonance forms illustrate areas of higher probabilities (electron densities). This is like holding your hat in either your right hand or your left. The term Resonance is applied when there are two or more possibilities available. Resonance structures do not change the relative positions of the atoms like your arms in the metaphor.

en.wikipedia.org/wiki/Resonate

Some behavior is mistaken for resonance but instead is a form of self-oscillation, such as aeroelastic flutter, speed wobble, or Hunting oscillation. In these cases, the external energy source does not oscillate, but the components of the system interact with each other in a periodic fashion.