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 ...

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 ...

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 ...

The periodic table, also known as the periodic table of (the) chemical elements, is a tabular display of the chemical elements. It is widely used in chemistry, physics, and other sciences, and is ...

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 ...

Thus p, the charge number, is identical with Moseley's atomic number, Z, which determines the position of the element in the periodic table. The mass number, A, is the sum of n and p. For example ...

Can philosophy make worthwhile contributions to science? Eric Scerri thinks it can, and looks at what it has brought to the table for chemistry. Some years ago I bought a T-shirt at an American ...

If you frequently need to print PDFs, Slim PDF is one of the fastest and most simple options available. The Nitro PDF Reader is another powerful free PDF reader in the vein of Foxit Reader and ...

Looking for the best free ... print the whole document, or just parts of it, fill in specific fields, add notes, it’s all there, and you can’t really ask for an easier-to-use PDF reader.

To help celebrate the start of new adventures ahead, we’ve put together a list of free printable first day of school signs so ...