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Ok so promethium is actually my least favourite lanthanide because I can’t actually work with it. It’s highly radioactive and at any one time on the earth’s surface there is not an awful lot of it so...
So this is a very, very special sample of lutetium. Again from the bottom end of the periodic table, the lanthanides, and you can see it’s a really quite beautiful metallic foil here. So lutetium is...
So this sample, it’s a very, very interesting sample; it’s arsenic. So this is quality arsenic. So arsenic used to much more common in the community than it is nowadays. It was used as a pigment in...
Restaurant Marketing - Elements of a Good Strategy Here's a good question. What are the elements of a good strategy? Well, when you think about it, there are really only a few things that...
The Periodic Table is an arrangement of chemical elements ordered by atomic number. It was designed by Dmitri Mendeleyev as a way of presenting all the elements to show their similarities and...