Chapter 6 The Structure of Matter

 

1.  Chemical Bond – the attractive force that holds atoms or ions together.

 

2.  Chemical Structure- the arrangement of atoms in a substance.

 

3.  Bond Length- the average distance between the nuclei of two bonded atoms.

 

4.  Bond Angle- the angle formed by two bonds to the same atom.

 

5.  Ionic Bond-the attractive force between oppositely charged ions, which form when electrons are transferred one atom to another.

 

6.  Covalent Bond- a bond formed when atoms share one or more pairs of electrons.

 

7.  Metallic Bond- a bond formed by the attraction between positively charged metal ions and the electrons around them.

 

8.  Polyatomic ion- an ion made of two or more atoms.

 

9.  Empirical formula- the composition of compound in terms of the relative numbers and kinds of atoms in the simplest ratio.

 

10.                   Molecular formula- a chemical formula that shows the number and kinds of atoms in a molecule, but not the arrangement of atoms.

 

11.                   Organic compound- a covalently bonded compound that contains carbon, excluding carbonates and oxides.

 

12.                   Polymer- a large molecule that is formed by more than five monomers, or small units.