ESL Saigon logo

Chemistry


Fluorine

Name: Fluorine
Symbol: F
Number of Energy Levels: 2
Electrons on the outer energy level: 7
Atomic number: 9
Atomic Mass: 18.998404 Amu (Atomic Mass Units)
Protons/Electrons: 9
Neutrons: 10
Density: 1.696 g/cm3
Classification: Halogen

Fluorine | Chemical elements

Fluorine was discovered in 1886 by Joseph Henri Moissan and it takes its name from the Latin word "fluo" which means "flow".

Top 13 interesting facts about fluorine

  1. At room temperature Fluorine is a yellow gas.
  2. Fluorine is the most electronegative element.
  3. Fluorine is very reactive, poisonous, and requires great attention when store and manipulate.
  4. Fluorine reacts explosively with Hydrogen.
  5. In Universe and on Earth, Fluorine is not very common; 24th most abundant in the Universe and 13th on the Earth (in the Earth’s crust).
  6. It was used to create the first atomic bomb used by American army in the Second World War against Japan.
  7. Fluorine compounds are used in steel industry (for lowering the melting point).
  8. Hydrogen Fluoride, a dangerous acid obtained from Fluorine, is used in many industries, particularly Aluminum industry and as a refrigerant gas.
  9. Teflon, the electrical insulator, also contains Fluorine.
  10. In Pharmaceutical industry Fluorine is used to produce the well known antidepressant Prozac and in toothpaste production for its ability to reduce decay when apply on teeth.
  11. Only one isotope of Fluorine is stable, the F19.
  12. California, Alaska, and Argentina have great deposits of fluorites.
  13. Fluorine melting point is -363.41 F (-219.67 C) and boiling point is -370.62 F (-188.12 C).

Back to index