Periodic table

Groups and Periods in the Periodic Table

Groups and Periods are the columns and rows of the periodic table. In this section you will explore how the periodic table was put together and the two main arrangement of the periodic table focusing on the groups and periods and metals and non metals.

Why is the Periodic Table so Important?

History of Chemistry: Alchemy Symbols

Alchemy symbols are illustrations that have been used by alchemists for hundreds of years to communicate between alchemists about different elements and scientific methods in the pursuit of alchemy. It was also used as a way to protect their discoveries and findings as often they were only known by a few people.