Nitrogen
Symbol: N
Atomic number: 7
Average atomic mass: 14.0067
Properties
-Nonmetal, gas
-Largest single component in Earth's atmosphere
-It is colourless, odourless, tasteless and mostly inert diatomic gas
-It has an electronegativity of 3.0
-The boiling point is (-195.79 °C, -320.42 °F)
-Melting point (-210.00 °C, -346.00 °F)
Applications
1. Preserves freshness of packaged foods
2. Incandescent light bulbs
3. On top of liquid explosives
4. To produce electronic parts
5. As dielectric gas for high voltage equipment
6. Manufacturing of stainless steel
7. Military aircraft fuel systems to reduce fire hazard
8. Filling automotive tires
-In gaseous form
-Can use liquid nitrogen to make home-made ice cream
-Liquid nitrogen is used to preserve sperm and egg
History
-Nitrogen was discovered by Daniel Rutherford in Scotland in 1772
-Daniel called nitrogen "native soda"
-Later the word was translated into french to "Nitrogen"
