Fluorine | Name | Fluorine | | Symbol | F | | Atomic Number | 9 | | Atomic Mass | 18.998 atomic mass units | | Number of Protons | 9 | | Number of Neutrons | 10 | | Number of Electrons | 9 | | Melting Point | -219.62° C | | Boiling Point | -188.14° C | | Density | 1.696 grams per cubic centimeter | | Normal Phase | Gas | | Family | Halogen | | Period Number | 2 | | Cost | $190 per 100 grams | | Origin of Name | From the Latin word fluo, meaning flow | | Date and Place of Discovery | 1886 in France | | Discovered by | Joseph Henri Moissan | | Common Compounds | Sodium fluoride (NaF) | | Interesting facts | - It is a yellow gas at room temperature.
- It's the 13th most abundant element found in the earth's crust.
- It isn't a free element in nature.
- It is very reactive with other elements and can combine with almost any element.
- The last United States mine to produce fluorine closed in 1995 making it necessary to import fluorine minerals.
| | Common Uses | - Water treatment to prevent tooth decay
- Toothpaste and other dental products
- Refrigerants
- Air-conditioning
- Teflon
| Photo Courtesy of LennTech Water Purification Cary Academy Chem4Kids Chemical Elements Wikipedia | | Fluorine Atomic Structure | Elements by Name | Elements by Number | Home | |
