scroll to top
Stuck on your essay?
Get ideas from this essay and see how your work stacks up
Word Count: 761
HYDROGEN BONDING Hydrogen bonding is a bonding type consisting of dipole and dispersion forces A hydrogen bond is the attractive force between a hydrogen atom attached to a molecule and an atom of a different molecule According to the Pauling scale of electro-negativities of the elements it can be viewed that the three most electronegative elements in the periodical table are nitrogen oxygen and fluorine These are also called heteroatoms The heteroatoms have a partial negative charge while hydrogen has a partial positive charge Hydrogen bonding is generally stronger than most bonds bar covalent bonds Water Bonding within water molecules occur between oxygen and hydrogen These covalent bonds mean that the electrons are shared between the oxygen and hydrogen atoms to create a complete valence shell However electrons tend to spend more time around the oxygen atom due to its higher electro-negativity This creates a partial positive charge around the hydrogen atoms and a partial negative charge around the oxygen atom When other water molecules are present the negatively charged end of one molecule will be attracted to the positively charged end of the other molecule as shown below Hydrogen bonding is not a type of intramolecular force Eg Ionic metallic and covalent bonding it is an intermolecular force An intramolecular force is one that exists between the atoms in a molecule With water it is the covalent bond present between the oxygen and two hydrogen atoms being intramolecular and the force that exists between neighboring molecules being intermolecular Eg Dispersion forces dipole-dipole bonds It is also known that intramolecular forces are much stronger than intermolecular forces With relation to strength the covalent bond in water is approximately 25 times the strength of the intermolecular hydrogen bond caused by di-pole attraction One type of intermolecular force is dipole-dipole bonding Dipole-dipole interactions are the forces that occur between two molecules with permanent dipoles These work in a similar manner to
@Kibin is a lifesaver for my essay right now!!
- Sandra Slivka, student @ UC Berkeley
Wow, this is the best essay help I've ever received!
- Camvu Pham, student @ U of M
If I'd known about @Kibin in college, I would have gotten much more sleep
- Jen Soust, alumni @ UCLA