Chemistry › Section R · Metals, metalloids, and nonmetals › Topic R.7
Halogens and noble gases
Groups 17 and 18 sit side by side but behave like opposites: the halogens are among the most reactive elements known, and the noble gases among the least. Yet chlorine keeps drinking water safe, and xenon, once thought incapable of bonding, forms a family of stable compounds.
In this topic
- The halogens
- Oxidising power falls down the group
- Making the halogens
- Worked example: products from a tonne of salt
- Chlorine, water and bleach
- Hydrogen halides and other compounds
- The noble gases
- Noble gas compounds
- Worked example: shapes of xenon fluorides
- Common mistakes to avoid
- Key takeaways
This topic is part of Wuanberri Pro. Checking your access…