118 Elements and Their Symbols and Atomic Numbers: Definition, Symbol with Atomic Number
The periodic table is a well-organized chart that contains all the known elements in the universe. These elements are ...
Hackaday8 年
7th Period Of The Periodic Table Complete
These elements, with atomic numbers of 113, 115, 117, and 118 comprise the missing parts of period 7 – the lowest row – of the periodic table. Now, IUPAC, the International Union of Pure and ...
Royal Society of Chemistry5 年
Chemistry in its element: bohrium
This includes the most recently announced element of all, element 117 that was synthesised in April 2010. This podcast is about one of these elements, number 107 in the periodic table, called bohrium.