This document discusses different types of chemical bonds: ionic bonds form when atoms gain or lose valence electrons to become ions with opposite charges that attract. Covalent bonds form when two atoms share valence electrons in single, double or triple bonds. Metallic bonds are characteristic of metals, with mobile valence electrons shared throughout the crystal structure. Ionic compounds are solid, often water-soluble with high melting/boiling points and low thermal conductivity.

1. Tatyanna Lollies
Pablo Rivera

2. Chemical bonds

 A chemical bond is an attraction between atoms that
allows the formation of chemical substances that
contain two or more atoms.

3. Types of chemical
bonds :

1. Ionic bonds
2. covalent bonds
3. Metallic bonds

4. Ionic bonds

Ionic bonds: a chemical bond
that occur when an atoms
gains a valence electrons
from another atom; forming
an Anion, (negative ion) and a
Cat ion (positive ion). They
attracted each other
forming an Ionic bond.

5. Covalent bond:

Covalent bonds: are formed when to
atom share valence electrons.
There are 3 types of covalent bonds
Single, Double and Triple.
Single: covalent bond formed by the
mutual sharing of one electron pair
between two atoms
Double: bond formed between 2 atoms
sharing 2 electron pairs
Triple: covalent bond formed by the

6. Metallic Bonds

 chemical bond characteristic of
metals, in which mobile valence
electrons are shared among
atoms in a usually stable
metals
 “in which the valence electrons
are free to move through the
crystal”
http://www.thefreedictionary.com

7. physical properties of Ionic
compounds:

 Physical Properties: Solid
 Electrical conductivity: Solid: No Liquid: Yes
Aqueous: Yes (if soluble)
 Boiling point and Melting Point: High
 Solubility in water: Often high
 Thermal conductivity: Low

8. Sources

 http://chemistry.about.com/od/chemicalbonding/
a/chemicalbonds.htm
 http://www.beyondbooks.com/psc92/3.asp
 http://www.citycollegiate.com/bondIXd.htm