Nitrogen is the most abundant gas in Earth's atmosphere, comprising 78%. Daniel Rutherford discovered nitrogen in 1772 through an experiment where he trapped air in an inverted bottle with a burning candle. The gas that remained after the candle burned out was nitrogen. Nitrogen has many important uses including in fertilizer production, rocket fuels, filling tires, and manufacturing steel and electronics.

1. NITROGEN
By Daniel Rivers

2. 7 ATOMIC DATA
• Symbol: N
• Atomic number: 7
• Atomic mass: 14.00674
N
• Protons: 7
Nitrogen
• Electrons: 7
14.00674

3. NITROGEN CYCLE

4. THE HISTORY OF NITROGEN
Nitrogen was discovered in 1772 by a Scottish physician Daniel
Rutherford(1749-1819).
He performed a simple experiment with which he discovered nitrogen.
Rutherford began with an empty bottle that he turned upside down in
a pan of water, so that the air was trapped. A burning candle was
placed inside the bottle with the trapped air, causing the water to rise a
bit. Why did this happen? The part of the air that seemed to
"disappear" when the candle was burned was oxygen gas, and the part
of the air that did not "disappear" Rutherford discovered was nitrogen.

5. GASES IN THE ATMOSPHERE
A trace gas is a gas
which makes up 1%
less than 1% by 21%
volume of the
Earth's
atmosphere.
1% are trace gases:
78% argon, ozone O3,
sulfur dioxide SO2,
nitrogen oxides
Nitrogen Oxygen
NOx, carbon
Trace gases dioxide CO2 and
methane CH4

6. USES FOR NITROGEN
• Gunpowder
• Fertilizer
• Rocket fuels
• Light bulbs may contain nitrogen as a cheaper
alternative to argon.
• Nitrogen gas is often used on top of liquid
explosive to keep them from exploding!
• Nitrogen is used to produce many electrical
parts such as transistors, diodes and
integrated circuits.
• Used to manufacture stainless steel.
• Used to reduce the fire hazard in military
aircraft fuel systems.
• Nitrogen gas is used to fill the tires of aircraft
and automobiles (cars).
• Nitrogen is a component of nearly every
pharmacological drug. Laughing gas (nitrous
oxide) can be used as an anesthetic.