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 ...

Ii (Cu - 63) Zn - 65 68 72 Aa - 75 So - 78 Br - SO II Rb - 85 ... of increasing atomic weight coincides with that of increasing atomic number (nuclear charge), but tthis need not be.

Because used nuclear fuel can be recycled several times through a fast nuclear reactor, it is worth more than gold.

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