Atomic Properties of Na
- Atomic Number of Na
- 11
- Atomic Mass of Na
- 22.9900 u
- Electron Configuration
- [Ne] 3s1
- Electronegativity
- 0.93
- Block
- s-block
- Group
- 1
- Period
- 3
Sodium is that friend who is fine as long as life is calm, but the second something surprising happens, everything gets loud.
As a shiny metal on its own, he really should not be left near water. Even a small splash sets him off in a fizzing, sparking display that would absolutely violate school lab safety rules. He does not mean harm; he is just wired to overreact.
Put him with chlorine, though, and he suddenly becomes the most stable, reliable salt on the table. In the form of sodium chloride, he is sprinkled over fries, swirling in oceans, and quietly running nerve signals in your body like a behind-the-scenes technician.
Streetlights used to love him too. In certain lamps, excited sodium atoms gave off that familiar yellow-orange glow that made foggy nights look like old movies. He may not star in as many modern lights anymore, but he still has that vintage streetlight legacy.
Sodium is a reminder that context matters. Alone, he is chaos. In the right company, he is essential.