"Mendeleev began arranging the elements and comparing them by their atomic weights." Here is an extremally long article about the Periodic Table: Periodic table - Wikipedia It fascinated me at school and it still fills me with wonder. I found this interactive table which explains information about an element when you click on its' symbol. It works on line. It's Elemental - The Periodic Table of Elements I downloaded it as a PDF file and it still works. But when I tried to download it again I could not. Take care, John
Laughing at His Misery
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Have you ever done something so stupid that you didn't want anyone to know,
but you had to ask for help anyway? This guy has to out up with laughter
and ...
2 hours ago