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hydrogen bonding, communication involving a hydrogen atom located in between a pair of various other atoms having actually a high affinity because that electrons; such a bond is weaker 보다 an ionic bond or covalent bond but stronger 보다 van der Waals forces. Hydrogen bonds can exist in between atoms in different molecules or in components of the same molecule. One atom the the pair (the donor), usually a fluorine, nitrogen, or oxygen atom, is covalently bonded to a hydrogen atom (―FH, ―NH, or ―OH), whose electrons it share unequally; the high electron affinity reasons the hydrogen to take it on a slight confident charge. The various other atom of the pair, likewise typically F, N, or O, has actually an unshared electron pair, which provides it a slight an adverse charge. Greatly through electrostatic attraction, the donor atom successfully shares its hydrogen v the agree atom, forming a bond. Since of its considerable hydrogen bonding, water (H2O) is liquid over a much greater variety of temperatures that would certainly be intended for a molecule that its size. Water is likewise a an excellent solvent because that ionic compounds and also many others because it readily develops hydrogen bonds with the solute. Hydrogen bonding in between amino mountain in a straight protein molecule identify the method it wrinkle up right into its useful configuration. Hydrogen bonds between nitrogenous bases in nucleotides on the two strands that DNA (guanine pairs v cytosine, adenine with thymine) give rise to the double-helix framework that is an important to the transmission of genetic information.

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