History of the Atom
"Element 11 - Sodium - Science Notes and Projects." Science Notes and Projects. Wordpress, 31 May 2013. Web. 22 Jan. 2015.
| Atomos, Atomos |
|
Symbol: Na
Atomic number: 11
Atomic mass: 22.990
Protons: 11
Electrons: 11
Neutrons: 12
Energy Levels: 3
