Germanium is a semiconductor in group IVA of the periodic table. It has an atomic number of 32, an atomic weight of 72.59, and a density of 5.32 Mg/m 3. Its melting temperature is 937.4 C. Germanium ...

So, Mendeleev said, we should also have ekaboron, eka-aluminium, ekamanganese and ekasilicon. Of these, by far the most accurate prediction was for ekasilicon, occupying the slot we now give to ...

But they have a rich history, going back through the silicon era to germanium junction transistors, and thence to the original devices. if you’ve ever looked at the symbol for a transistor and ...