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Basic Information
Name: Fluorine
Symbol: F
Atomic Number: 9
Atomic Mass: 18.998404 amu
Melting Point: -219.62 °C (53.530006 °K, -363.31598 °F)
Boiling Point: -188.14 °C (85.01 °K, -306.652 °F)
Number of Protons/Electrons: 9
Number of Neutrons: 10
Classification: Halogen
Crystal Structure: Cubic
Density @ 293 K: 1.696 g/cm3
Color: Greenish
Atomic Structure
![[Bohr Model of Fluorine]](Chemical Elements_com - Fluorine (F)_files/b0009.gif) |
Number of Energy Levels: 2 First Energy Level: 2 Second Energy Level: 7 |
Isotopes
| Isotope | Half Life |
| F-18 | 1.8 hours |
| F-19 | Stable |
Facts
Date of Discovery: 1886
Discoverer: Joseph Henri Moissan
Name Origin: From the Latin word fluo (flow)
Uses: Refrigerants
Obtained From: mineral fluorite