Monday, November 8, 2010

There 3 main types of divisions for bonding. There is ionic bonds, covalent bonds, and metallic bonds.
Ionic Bonds-
An ionic bond is a bond with an element with a positive and negative charge usually a metal and nonmetal. Anions are atoms with negative charges .Cations are atoms with positive charge . In ionic bonding the electrons are transferred from one atom to the other by either gaining or losing electrons; the purpose of the elements gaining or losing electrons is so that they can have a full octet like that of a noble gas. Group 1 to 3 will lose electrons and groups 5 to 7 will gain electrons. The oppositely charged atoms are attracted by electrostatic forces.
Covalent Bonds-
Covalent Bonds share electrons this type of bond can occur between two or more elements share electrons. A covalent bond occurs because the elements in the compound have similar tendencies for electrons usually to gain electrons. The most common thing for a covalent bond is when two nonmetals come together to bond because the nonmetals will want to gain electrons; therefore, the elements will share their electrons to fill the orbital.
Metallic bonds-
Metallic bonding is the attraction between certain electrons, called conduction electrons, and the metallic nuclei within the metals gatheraround the eletron cloud. Zinc and copper are good examples of a metallic bond.When Zinc and Copper are bonded brass is formed.because of the negative charge of the electron cloud pull the positive atoms causing them to form a metallic bond. The electronic cloud moves freely in a direction and when voltage is applied an electron current is formed where thermal energy is released allowing this to bond a good conductor of heat.

1 comment:

  1. Kudos to you! Okay now focus on your quest quiz and also complete the Extra Credit

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