The Periodic Table of Elements
A table of the chemical elements arranged in order of atomic number, usually in rows, so that elements with similar atomic structure appear in vertical columns. There are 118 elements on the periodic table, and 92 of them are naturally occuring.
Types of Elements
As you can see, the elements are all different colours. There are 4 main groups, and on the periodic table shown above, the blue group ( both light and dark) and the purple group are metals. The red coloured elements are metalloid's, the bright green elements are non-metals, the dark green elements are Nobel gases.
Grouping
On top of each group, there are numbers, and they represent groups. All the numbers are different groups.
1. Alkali Metals - Very reactive with water and heat, and they become more reactive as you move down the group.
2. Alkali Earth Metals - They burn at very high temperatures and they burn in colours.
17. The Halogens - Very toxic to living things. They become more toxic as you move up the group.
For more information, visit http://en.wikipedia.org/wiki/Group_(periodic_table).
1. Alkali Metals - Very reactive with water and heat, and they become more reactive as you move down the group.
2. Alkali Earth Metals - They burn at very high temperatures and they burn in colours.
17. The Halogens - Very toxic to living things. They become more toxic as you move up the group.
For more information, visit http://en.wikipedia.org/wiki/Group_(periodic_table).