The Periodic Table of Elements

The Periodic Table of Elements is a graph / diagram that displays chemical elements that occur (and have been discovered) on Earth. Each element has its own chemical symbol which is displayed on the table. The reactivity series is also displayed on the table. The further down the table the element is, the more reactive. The periodic table also displays other information such as relative atomic mass and atomic number as well as the full name of the element. This is what the Periodic Table looks like:The_Periodic_Table.jpgThere are several different types of elements listed on the Periodic Table, these are split into two groups. Metals and non-metals. Here is the groups that the elements on the Periodic Table are sorted into:


  • Alkali Metals
  • Alkaline Earth Metals
  • Lanthanides
  • Actinides
  • Transition Elements
  • Other Metals
  • Metalloids


  • Other Non-Metals
  • Halogens
  • Noble Gases
  • Unknown

The Reactivity Series

The Reactivity series does what it says in the name. It is a series listing the least reactive metals to the most reactive. The Periodic Table displays the biteszedreactivity.gifreactivity series, generally, the further down the table the metal is, the more reactive it is. To the side is a simple graph showing the reactivity series.

Alot of people use an acronym or a pneumonic to rememer the order of the reactivity series. Here are some examples:

Peter Seldom Catches Many Antelopes 'cos Zena Inevitably Tells Lady Constables She's Gotta Photograph.

People See Cats Meeting Ants and go to the Zoo In Tired Looking Cars with Smiles Grating Peanuts.

Relative Atomic Mass

Not to be confused with atomic weight.

The atomic mass is the mass of an atom. The atomic mass of an atom is the combined mass of protons, neutrons and electrons inside.

Atomic Number

The atomic number, sometimes known as the proton number, is the amount of protons in the nucleus of an atom. All chemical elements have a unique atomic number. In a neutrally charged atom, the atomic number is equal to the number of electrons.

External Sources

Periodic Table - Wikipedia, the free Encyclopedia
Chemical - An Interactive Periodic Table of Elements