Coursework.Info - Inspiration in an Instant

On the left is an image preview of every page of this document, and below are the first 150 words with formatting removed:

The Periodic Table Greek thinkers from around 400BC used the words 'element' and 'atom' to describe the differences and smallest parts of matter. These ideas are still used universally in modern times although it wasn't until much later that anything as complex as a 'periodic table' was devised. By the 19th century chemistry had progressed to the point of defining an element as a substance that could get no smaller. The number of elements discovered increased rapidly, but there was no way of telling how many remained to be discovered or where they might be found. As the number increased, however, it became evident that certain groups of elements could be classified into 'families' with similar chemical properties. The actual discovery of the periodic law came in the years between 1868 and 1870 and was made almost simultaneously by 'Lothar Meyer' in Germany and 'Dmitry Ivanovich Mendeleyev' in Russia. Meyer arranged the...

Get instant access

• Instant, unlimited access to our documents in full
• Swap your work for free access, or pay £4.99
• To see the full version of this document and 151,744 others