Question #3

-There are 3 types of bonds: ionic, covalent, and metallic bonds.

Some of the Characteristics of Ionic Bonds are that they have high melting points, they can conduct electricity, they can dissolve easily in H2O, & they have well defined crystals.

"Examples: NaCl, CaCO3 (smallscalechemistry.com)."

Ionic bonding is a chemical bond that is transfering is's electrons from each atom to the other. They can either gain or lose electrons. When the ions become charged, they are then attracted to each other. The result of this attraction is the formation of a negative ion and a positive ion. A negative ion is called an Anion and a positive ion is called a Cation.

Example: sodium chloride

Ionic bonds occur between nonmetals & metals

Some of the Characteristics of Covalent Bonds are that they are neutral molecules, they are non conductors of electricity, and they have low boiling & melting points.

Some Examples: Hydrogen, Carbon, Nitrogen, & Oxygen


-"Single covalent bond – one pair of electrons that are shared by 2 atoms.
Examples: H2, F2 & I2
-Double covalent bond- two pairs of shared electrons.
Examples: O2, CO2 & H2CO
-Triple covalent bonds- three pairs of shared electrons.
Examples: C2H2 & N2(visionlearning.com)."

When a nonmetal & another nonmetal bond, they form a covalent bond.


Some of the Characteristics of Metallic Bonds are that they are malleable solids, they have high melting and boiling points, and that they are insoluble in nonpolar solvents.

Examples: gold & copper(smallscalechemistry.com)."

"In Metallic Bonding the valence electrons of all the atoms of the certain substance are shared.

Metallic bonding occurs between a mix of metals in alloys(smallscalechemistry.com)."


References: http://www.smallscalechemistry.colostate.edu/PowerfulPictures/ChemicalBonding.pdf
http://www.visionlearning.com/library/module_viewer.php?mid=55