Fluorine element (F) is in group 17 and period 2 of a periodic table. Fluorine is in the p-block and it is classified as a halogen group element on the periodic table.
There is a lot more information related to fluorine which is mentioned in the Information Table given below.
So let’s dive right into it!
Table of contents
- Fluorine element (Information Table)
- Fluorine element in Periodic table
- Facts about Fluorine
- Properties of Fluorine
- Uses of Fluorine
Fluorine Element (Information Table)
The important data related to fluorine element is given in the table below.
|Appearance of fluorine||Gaseous state has Pale yellow color |
Liquid state has Bright yellow color
Alpha fluorine is Opaque
Beta fluorine is Transparent
|Atomic number of fluorine||9|
|Symbol of fluorine||F|
|Atomic mass of fluorine||18.998 u|
|Protons, Neutrons & Electrons in fluorine||Protons: 9, Neutrons: 10, Electrons: 9|
|State of fluorine (at STP)||Gas|
|Group number of fluorine in periodic table||17|
|Period number of fluorine in periodic table||2|
|Block of fluorine in periodic table||p-block|
|Category of fluorine||Nonmetals (halogens)|
|Bohr model or Electrons per shell or Electrons arrangement in fluorine||2, 7|
|Electron configuration of fluorine||[He] 2s2 2p5|
|Orbital diagram of fluorine|
|Valence electrons in fluorine||7|
|Electronegativity of fluorine (on pauling scale)||3.98|
|Atomic radius of fluorine (van der Waals radius)||135 picometers|
|Density of fluorine||1.696 g/L|
|1st ionization energy of fluorine||17.423 eV|
|Main isotope of fluorine||19F|
|Melting point of fluorine (F2)||53.48 K or -219.67 °C or -363.41 °F|
|Boiling point of fluorine (F2)||85.03 K or -188.11 °C or -306.6 °F|
|Crystal structure of fluorine||Simple cubic|
|Discovery of fluorine||By Andre-Marie Ampere in 1810|
Also see: Interactive Periodic Table (It has rotating bohr models as well as many other details of all the 118 elements in a single periodic table).
Fluorine element in Periodic table
The Fluorine element (F) has the atomic number 9 and is located in group 17 and period 2. Fluorine is a nonmetal and it is classified as a halogen element.
Click on above elements in the periodic table to see their information.
Facts about fluorine
Here are a few interesting facts about fluorine element.
- Human body contains approximately 3 mg of fluorine.
- Out of all the 118 elements on the periodic table, fluorine has the highest electronegativity.
- Fluorine has the atomic mass of 18.998 u, which makes it the lightest halogen on the periodic table.
- Fluorine is highly reactive and so it always exists as a compound with other elements. And fluorine is the 13th most abundant element present in the earth’s crust.
- Fluorine is very rarely present in the universe. Fluorine contributes only 400 parts per billion in the entire universe.
- The mineral of fluorine is fluorite (also known as fluorspar) and it glows in the dark when it is exposed to light.
- The stable isotope of fluorine is 19F and it is highly sensitive to magnetic fields.
Properties of fluorine
Here is a list of some physical properties and chemical properties of fluorine.
Physical properties of fluorine
- Fluorine is in gaseous state at STP and its color is light pale-yellow.
- The liquid fluorine has a bright yellow-color.
- Fluorine is the lightest halogen which has an atomic mass of 18.998 amu.
- The liquid fluorine is easily soluble in liquid oxygen and ozone.
- The smell of fluorine gas is highly pungent.
Chemical properties of fluorine
- Fluorine is a corrosive gas and it is highly toxic in nature.
- Fluorine is a reactive element and hence it always exists in a compound form with other elements.
- The reactivity of fluorine is very high and it can also affect diamonds up to some extent.
- Fluorine shows an explosive reaction with water.
- Fluorine does not show any reaction with noble gases like helium, neon and krypton.
Uses of fluorine
Here are some uses of the fluorine element.
- Sodium fluoride (NaF) is a compound of fluorine that is used in toothpaste, which helps in preventing dental cavities.
- Fluorine is used in making refrigerants like CFC (chlorofluorocarbon), which is used in Air conditioners, refrigerators, etc.
- The fluorine compounds are used in processing of nuclear fuels.
- Fluorine is also present in some drugs (in small proportions).
- Fluorine is used in the manufacturing of teflon.
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