Themes > Science > Chemistry > General Chemistry > Elements > Online Interactive Periodic Table of the Elements > Sodium

Name:
Sodium
Symbol: Na
Atomic Number: 11
Atomic Mass: 22.98977 amu
Melting Point: 97.8 °C (370.95 °K, 208.04001 °F)
Boiling Point: 552.9 °C (826.05005 °K, 1027.2201 °F)
Number of Protons/Electrons: 11
Number of Neutrons: 12
Crystal Structure: Cubic
Density @ 293 K: 0.971 g/cm3
Color: silvery

Atomic Structure

 
Number of Energy Levels: 3

    First Energy Level: 2
    Second Energy Level: 8
    Third Energy Level: 1

Isotopes

Isotope Half Life
Na-22 2.6 years
Na-23 Stable
Na-24 14.96 hours

Facts


Date of Discovery: 1807
Discoverer: Sir Humphrey Davy
Name Origin: soda (Na2CO3)
Symbol Origin: From the Latin word natrium (sodium)
Uses: medicine, agriculture
Obtained From: table salts and other foods


Information provided by: http://www.chemicalelements.com