Atomic number 53I
Iodine
আয়োডিন
- Halogen
- Group 17
- Period 5
- Atomic mass 126.900 u
- Solid
- Electrons per shell
- 2, 8, 18, 18, 7
- Electron configuration
- [Kr] 4d10 5s2 5p5
- Nucleus
- 53 protons, 74 neutrons
- Valence electrons
- 7
Speed1×
- Group
- 17
- Period
- 5
- Block
- p-block
- Category
- Halogen
- State at 25 °C
- Solid