What is the difference between glass and quartz, though both contain SiO44– units?
Both naturally-occurring and artificial quartz crystal contains at least ninety-nine percent silicone dioxide, while cut glass crystal only possesses at most eighty percent silicone dioxide.
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In an alloy of gold and cadmium, gold crystallizes in cubic structure occupying the corners only and cadmium fits into the face centre voids. What is quantitative composition of the alloy?
What is the effect of Frenkel defect on electrical conductivity of the solid?
What other element may be added to silicon to make electrons available for the conduction of electric current?
Which solid is likely to be the best material for converting sunlight into electricity?
