Question 3

Summer Dolezel
6th

Question 3- types of bonds





Ionic bonds- An ionic bond is a tie between two atoms that are caused by the forces between opposite charged ions in an ionic compound. When a negative ion meets a positive one, their opposite charges attract and attach the atoms together.











Covalent bonds- Covalent bonds are forces that hold atoms together. When the atoms share electrons, this forms the forces. This term is used to describe the bonds in compounds that share one or more pairs of electrons.











Polar Covalent- Polar Covalent bonds are relevent to a type of covalent bond. Mostly, the atoms spend more time by the Oxygen nucleus than the Hydrogen nucleus. All covalent bonds are polar somewhat unless the bond is between two atoms of the same element.













Hydrogen bonds- A hydrogen bond is between the hydrogen attached to an electronegative atom of one molecule and an electronegative atom of a different molecule. Hydrogen bonds keep water liquid over a wider range of temperature than is found for any other molecule its size.
The energy required to break multiple hydrogen bonds causes water to have a high heat of vaporization.


Useful Sites:

http://chemed.chem.purdue.edu/genchem/topicreview/bp/ch8/valenceframe.html

http://www.green-planet-solar-energy.com/polar-covalent-bond.html