Mrs Roberts: Well, the modern periodic table shows us all of the elements arranged in rows, which are called periods. It has changed a lot over the years as we've learned more and more about atoms.

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 ...

You'll find it on the wall of nearly every school chemistry laboratory in the land. And generations of children have sung the words, "hydrogen and helium, lithium, beryllium..." in an attempt to ...

118 Elements and Their Symbols and Atomic Numbers: The periodic table is a well-organized chart that contains all the known elements in the universe. These elements are building blocks of matter ...

Take your pick from this collection of links about elements and the periodic table! Build an element ball ... the connection of alchemy to modern day chemistry, and some fun activities to experience a ...

The Periodic Table of Elements is a testament to the many millennia ... “Anything that we would call a modern marvel of ...

Is the periodic table hanging ... principles of modern chemistry led future generations to regard him as a founder of the science. Before 1886, aluminum was a semiprecious metal comparable in price to ...

With Glenn T. Seaborg's 1945 discovery that the actinides were in fact f-block rather than d-block elements, a recognisably modern form of the table was reached. The periodic table and law are now a ...

That’s why this periodic table clock really caught our eye. [gocivici]’s idea is a simple one: light up three different elements with three different colors for hours, minutes, and seconds ...