`CO_(2)` is a gas while `SiO_(2)` is a solid. Explain.

At room temperature, CO_(2) is a gas while SiO_(2) is a solid because

In SiO_(2)

SiO_(2) is a/an

Statement-I: CO_(2) is a gas, while SiO_(2) is solid Statement-II: Carbon has no vaccent 'd' orbitals but silican has.

Explain the following (a) CO_(2) is a gas whereas SiO_(2) is a solid (b) Silicon forms SiF_(6)^(2-) ion whereas corresponding fluoro compound of carbon is not known.

Silicon is the second most abundant element (~27.2%) in the earth's after oxygen (45.5 %) Carbon. Silicon, germanium, tin and lead constitute the group 14 of the periodic table. Chemistry of silicon is distinctly different from that of carbon. For example, under standard conditions CO_(2) is a gas whereas SiO_(2) is a covalent solid. Draw the structures of CO_(2) and SiO_(2)