Question

______ was discovered by the Scottish physician Daniel Rutherford in 1772.
1. Helium
2. Hydrogen
3. Chlorine
4. Nitrogen

Answer 1

Correct Answer - Option 4 : Nitrogen

The correct answer is Nitrogen.

• Nitrogen was discovered by the Scottish physician Daniel Rutherford.
• Rutherford discovered nitrogen by the isolation of the particle in 1772.
• Nitrogen is the chemical element with the symbol N and atomic number 7.
• The name nitrogen was suggested by French chemist Jean-Antoine-Claude Chaptal in 1790.
• Nitrogen is the fifth most abundant element in the Universe, It constitutes 78% of Earth's air.

​

Elements and their discoverer:

Chemical Element	Discoverer
Oxygen	Joseph Priestly.
Hydrogen	Henry Cavendish.
Selenium Silicon Thorium	Jons Jakob Berzelius.
Sodium Potassium Calcium Barium	Sir Humphrey Davy.
Magnesium	Joseph Black.
Chlorine	Carl Wilhelm Scheele.
Helium	Pierre Janssen, Norman Lockyer, and Per Teodor Cleve.
Krypton Neon Xenon	Sir William Ramsay and Morris Travers,
Radium	Marie Curie.