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Ok so gadolinium is smack-bang in the middle of the 4f series. It’s perhaps most famous for the fact that it’s used as a contrast reagent in MRI machines. So if you need a full body scan, a doctor...
Hi, this is Dr. B. Let's do the Lewis structure for Beryllium Chloride. On the periodic table Beryllium is in group 2, it has 2 valence electrons; Chlorine--group 7--7, but we have 2 of those...
The open button is located to the top left. Left mouse: Rotation Right mouse: Navigation Display/Hide slices Each item in the list has its own Properties panel. Let's open a new item. Use the...
500 Nações Olá. Sou Kevin Costner. Bem-vindos a "500 Nações". A colonização deste país sempre me interessou. Deu asas a minha imaginação e moldou a minha vida tanto pessoal como...