Mapa mental

Group 7

rachbreen Inglés

Mind map: Group 7 halogens

Contenido del mapa

Group 7

Van der Waals increase down group due to increase in electrons
- Boiling points increase.
Reactivity decreases down the group
- Atomic radius increases
- Shielding increases
- Nuclear attraction for other electrons is not as strong
Need to attract an electron to form octet!!! - ion
Halide ions
- Chlorine + silver = white precipitate
  - Soluble in dilute ammonia
- Bromine + silver = cream precipitate
  - Soluble in concentrated ammonia
- Iodine + silver = yellow precipitate
  - Insoluble in concentrated ammonia