Chemical & Material
Silicon-28
Silicon-28 is the stable, spin-zero isotope of silicon with atomic number 14 and a mass number of 28, consisting of 14 protons and 14 neutrons in the nucleus and 14 electrons in the surrounding shells. In nature it is the overwhelmingly predominant silicon isotope, accounting for roughly 92 % of terrestrial silicon atoms, with the remainder mainly silicon-29 and silicon-30; as a result, the atomic-weight standard for elemental silicon is closely tied to the weighted…
- Types
- Purity: 99.99%-99.994% · Purity: ≥99.995%
- Applications
- Semiconductor · Quantum Computing · Metrology
5 editions28 December 2025