Elements
- 381
- Silicon Chemistry Primer
- Review of silicon and silicone chemistry including properties and types of materials that can be made.
- 382
- USGS Minerals Information: Silicon
- Statistics and information on the worldwide supply, demand, and flow of the element (PDF format).
- 383
- WebElements: Silicon
- Extensive information on history, uses, occurrence, compounds, and properties of the element.
- 384
- Wikipedia: Silicon
- Properties of the element, including its history, applications, and characteristics.
- 387
- WebElements: Silver
- Extensive information on history, uses, occurrence, compounds, and properties.
- 388
- Wikipedia: Silver
- Properties of the element, including its history, applications, and characteristics.
- 391
- WebElements: Sodium
- Extensive information on history, uses, occurrence, compounds, and properties of the element.
- 392
- Wikipedia: Sodium
- Properties of the element, including its history, applications, and characteristics.
- 395
- USGS Minerals Information: Strontium
- Statistics and information on the worldwide supply, demand, and flow of the element (PDF format).
- 396
- WebElements: Strontium
- Extensive information on history, uses, occurrence, compounds, and properties of the element.