Group VII elements: Halogens
Group VII elements are called Halogens. They are all non metals. They include:
|
Element |
Symbol |
Atomic number |
Electronic configuration |
Charge of ion |
Valency |
State at Room Temperature |
|
Fluorine Chlorine Bromine Iodine Astatine |
F Cl Br I At |
9 17 35 53 85 |
2:7 2:8:7 2:8:18:7 2:8:18:18:7 2:8:18:32:18:7 |
F- Cl- Br- I- At- |
1 1 1 1 1 |
Pale yellow gas Pale green gas Red liquid Grey Solid Radioactive |