SiO2

[dat_student]

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Silica is a network solid of silicon and oxygen atoms. The empirical formula for silica is SiO2. In silica, to how many oxygen atoms is each silicon bonded?
A. 1
B. 2
C. 3
D. 4

They say "4" (D) but it seems to me "si" is attached to 2 oxygens (B) via 4 bonds (2 sigma & 2 pi bonds). What do you guys think (2 or 4)?

 

[ddsnp]

Silica is a network solid of silicon and oxygen atoms. The empirical formula for silica is SiO2. In silica, to how many oxygen atoms is each silicon bonded?
A. 1
B. 2
C. 3
D. 4

They say "4" (D) but it seems to me "si" is attached to 2 oxygens (B) via 4 bonds (2 sigma & 2 pi bonds). What do you guys think (2 or 4)?

network solid is a key word....go here for more info http://www.avogadro.co.uk/structure/chemstruc/network/g-molecular.htm

seems to detailed for the DAT

 

[dat_student]

network solid is a key word....go here for more info http://www.avogadro.co.uk/structure/chemstruc/network/g-molecular.htm

seems to detailed for the DAT

Thanks...