Question
Most common minerals on Earth are silicates. Silicates are defined by the presence of the silica tetrahedron. What is it?
n the center and an oxygen atom at each of the four comers
a. a four-sided pyramid arrangement of atoms with a silicon atom in the center and an oxygen
b. any arrangement of silicon and oxygen atoms
O c. a cubic arrangement of atoms with a silicon atom in the center and an oxygen
atom at each of the eight corners
d. a bipyramidal (diamond) shaped arrangement of atoms with a silicon atom in the center and an oxygen at each of the five comers
Answer
d. a bipyramidal (diamond) shaped arrangement of atoms with a silicon atom in the center and an oxygen at each of the five comers