| 1 | It's silicon dioxide, he equilibrium state would be a crystal. | |
| 2 | Designs are etched onto photolithography plates which are then used to "print" the chips' circuitry, layer by layer, in films of silicon, silicon dioxide, aluminum and other materials. | |
| 3 | As the principal component in glass, silicon dioxide was used as early as 5000 BC. | |
| 4 | Rice husks form small cases around edible kernels of rice and are rich in silicon dioxide, an essential ingredient in concrete. | |
| 5 | Or rather, it's slang for the disease you get when you inhale silicon dioxide which makes it hard to breathe. |
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