Elements
- 461
- WebElements: Vanadium
- Extensive information on history, uses, occurrence, compounds, and properties of the element.
- 462
- Wikipedia: Vanadium
- Properties of the element, including its history, applications, and characteristics.
- 467
- Wikipedia: Xenon
- Properties of the element, including its history, applications, and characteristics.
- 470
- WebElements: Ytterbium
- Extensive information on history, uses, occurrence, compounds, and properties.
- 471
- Wikipedia: Ytterbium
- Properties of the element, including its history, applications, and characteristics.
- 474
- WebElements: Yttrium
- Extensive information on history, uses, occurrence, compounds, and properties of the element.
- 475
- Wikipedia: Yttrium
- Properties of the element, including its history, applications, and characteristics.
- 478
- USGS Minerals Information: Zinc
- Statistics and information on the worldwide supply, demand, and flow of the element (PDF format).