Play this game to learn about lots of different elements in the periodic table. While you're watching ... BBC Teach has thousands of free, curriculum-linked resources to help deliver lessons ...

The periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic ...

This year we celebrate the 150 th anniversary of Mendeleev’s achievement in formulating the structure of the periodic table that we use today. He announced his structure in 1869, but the challenge of ...

Can France claim the first periodic table? Probably not, but a French Geology Professor made a significant advance towards it, even though at the time few people were aware of it. Alexandre Béguyer de ...

The fact that many of the rare earths yield coloured salts has led to considerable uncertainty as to their proper place in the periodic classification, and many attempts have been made to allocate ...

Can you name everything from Ac to Zr? Test your knowledge of the periodic table and see if you can top the leaderboard When you purchase through links on our site, we may earn an affiliate ...

The story of the last element to be discovered out of the first 92 catalogued in the periodic table is told by Eric Scerri, who reminds us that technetium can be found a little closer to home than ...

PDF files have become a major ... document has complex visual formatting such as tables and graphs. In this case, it is best to use a designated free or premium PDF editor. PCWorld helps you ...

To avoid this issue, you need to compress PDF with either an online or offline PDF compressor. Online PDF compressors are free, accessible ... The following table offers a concise summary of ...