Diamond and pencil lead are both pure carbon, and sand and glass are both built from silicon. We follow group 14 from carbon down to lead: the allotropes of carbon, the oxides of carbon, silicon and the silicates, silicones and zeolites.
3 lessons, about 1 h 35 min3 simulations10 problems6 practice questionsPython in every lesson
Created by StemPy LabA pencil lead, a diamond ring and a lump of coal are all carbon, and a football-shaped molecule of carbon was found only in 1985. We read the trends of group 14 and then study the allotropes of carbon.
A coal fire can give off a gas that kills without a smell, and a fizzy drink gives off a gas that is harmless. We compare the two oxides of carbon, their structures and reactions, and then the carbonates.
Beach sand, window glass, a computer chip, a kitchen spatula and a water softener have one element in common. We follow silicon from sand to silicates, silicones and zeolites.
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