The common sand that powers the digital world's complex architecture
In short: It is the second most abundant element in Earth's crust, surpassed only by oxygen. Yet, this simple component of sand is the foundation of our modern era, enabling the semiconductors and computer chips that drive the entire internet.
Silicon is a nonmetallic element belonging to the carbon family. While it has been used since antiquity—the predynastic Egyptians used rock crystal for beads and the Phoenicians manufactured glass containing silica as early as 1500 BCE—its role in modern technology is far more complex. The element's name, derived from the Latin 'silex' or 'silicis', refers to flint or hard stone.
The transition from raw material to high-tech component involves sophisticated chemistry. While impure silicon was obtained in 1811, it wasn't until 1854 that crystalline elemental silicon was prepared through electrolysis. This material is essential for creating solid-state semiconductors. By manipulating silicon, scientists can create N-type and P-type semiconductors, which are the fundamental building blocks for diodes and transistors.
These components are the heart of computer chips, which process information using binary code. Silicon's utility is rooted in its unique atomic properties. It has an atomic number of 14 and an atomic weight of 28.086. In the cosmic scale, it is quite abundant, surpassed only by hydrogen, helium, oxygen, neon, nitrogen, and carbon. It is believed to form through alpha-particle absorption by carbon-12, oxygen-16, and neon-20 nuclei at temperatures around 10^9 K.
Beyond electronics, silicon is a massive geological force. It makes up 27.7 percent of the Earth's crust by weight. Its stability is notable; the energy binding its nucleus is approximately 8.4 million electron volts per nucleon, which is close to the maximum stability found in iron.
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Sources
- Summary by Intellect · source: Silicon - The Internet's Favorite Element: Crash Course Chemistry #35
- Also: Silicon | Element, Atom, Properties, Uses, & Facts | Britannica
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