Elements, Atoms, Compounds and Molecules.

By D’Arcy Meredith

Elements

An element is a pure substance made up of one type of atom.

Atoms

An atom a fundamental piece of matter made up of protons, neutrons and electrons.

Protons

Electrons

Neutrons

Metals

Metal is an element, compound, or alloy characterized by electrical and heat conductivity .

What is non-metal?

A non-metal is an element on the periodic table that does not have the properties of a metal element such as malleability. Non metals are usually found as gases in nature or weak, brittle solids.

Periodic Table

Description of what a periodic table is?

What is a compound?

A chemical compound is a substance composed of two or more different elements chemically bonded together in a fixed proportion by mass.

Chemicsal Reaction

A chemical reaction is a process that leads to the transformation of one set of chemicals substances to another.

Identify a chemical reatcion

Production of heat, light, gas or precipitate.

Physical and Chemical changes. A chemical change is

non reversible as a physical change is. For example, the burning of wood is a chemical change, as you can't unburn it, whereas the freezing of water would be a physical change because it can be reversed.

Factors affecting a Reaction Rate.

Temperature, concentration, size of particles or using a catalyst.

Add a picture.

Bibliography

http://wiki.answers.com/Q/What_is_an_element http://

www.qrg.northwestern.edu/projects/vss/docs/Propulsion/1-what-is-an-atom.html

http://en.wikipedia.org/wiki/Metal http://wiki.answers.com/Q/What_is_a_non-metal http://en.wikipedia.org/wiki/Chemical_compound http://en.wikipedia.org/wiki/Chemical_reaction http://www.virted.org/chemist/pcchange.html http://www.purchon.com/chemistry/rates.htm