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Information valid for Na-23 unless otherwise noted

Basic Information

Symbol: Na
Atomic Number: 11
Mass: 22.98977
Melting Point: 97.8 C
Boiling Point: 552.9 C
Number of Protons/Electrons: 11
Number of Neutrons: 12
Classification: Alkali Metal
Crystal Structure: Cubic
Density @ 293 K: 0.971 g/cm3
Color: silvery

Atomic Structure

[Bohr Model of Sodium]
Number of Energy Levels: 3

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


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


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

Related Links

Note: The external links below are not a part of this site and their content is not the responsibility of this site

  1. Salt Institute