Basic Information

Name: Nitrogen 
Symbol: N 
Atomic Number: 7 
Atomic Mass: 14.00674 amu 
Melting Point: -209.9 °C (63.250008 K, -345.81998 °F) 
Boiling Point: -195.8 °C (77.35 K, -320.44 °F) 
Number of Protons/Electrons: 7 
Number of Neutrons: 7 
Classification: Non-metal 
Crystal Structure: Hexagonal 
Density @ 293 K: 1.2506 g/cm3 
Color: colorless
Date of Discovery: 1772 
Discoverer: Daniel Rutherford 
Name Origin: Greek 
Uses: forms most of atmosphere 
Obtained From: from liquid air