Beryllium is a silvery-white, lustrous, relatively soft metal of group 2 of the periodic table. The metal is unaffected by air or water, even at red heat. When copper and nickel are alloyed with ...

The periodic table is a well-organized chart that contains all the known elements in the universe. These elements are ...

And generations of children have sung the words, "hydrogen and helium, lithium, beryllium ... is the same as the number of protons in its nucleus. Thus, in the modern periodic table, the ...