Atomic number 8O
Oxygen
অক্সিজেন
- Reactive non-metal
- Group 16
- Period 2
- Atomic mass 15.999 u
- Gas
- Electrons per shell
- 2, 6
- Electron configuration
- 1s2 2s2 2p4
- Nucleus
- 8 protons, 8 neutrons
- Valence electrons
- 6
Speed1×
- Group
- 16
- Period
- 2
- Block
- p-block
- Category
- Reactive non-metal
- State at 25 °C
- Gas