Fluorine - Key Stage Wiki

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Fluorine

Contents

• 1 Key Stage 2
  • 1.1 Meaning
• 2 Key Stage 3
  • 2.1 Meaning
  • 2.2 About Fluorine
    • 2.2.1 Molecular Structure
    • 2.2.2 Atomic Structure
    • 2.2.3 Properties
• 3 Key Stage 4
  • 3.1 Meaning
  • 3.2 About Fluorine
    • 3.2.1 Molecular Structure
    • 3.2.2 Atomic Structure
    • 3.2.3 Properties
    • 3.2.4 Testing For Fluorine
  • 3.3 References
    • 3.3.1 AQA

Key Stage 2

Meaning

Fluorine is a yellow gas.

Key Stage 3

The chemical symbol for Fluorine. A 2 dimensional representation of a Fluorine atom with 9 protons and 10 neutrons in the nucleus and 9 electrons orbiting the nucleus.

Meaning

Fluorine is a Group 7 element, on the Periodic Table, with an atomic number of 9.

About Fluorine

Molecular Structure

Fluorine has the chemical formula F2.

Atomic Structure

Fluorine as 9 protons and 10 neutrons in its nucleus giving it an Atomic Number of 9 and an atomic mass of 19. An atom of Fluorine is missing one electron from having a full outer shell.

Properties

Fluorine is a non-metal element. Fluorine is the most reactive Halogen. Fluorine reacts strongly with Hydrogen to produce Hydrogen Fluoride which dissolves in water to produce Hydrofluoric Acid. Fluorine is a strong bleaching agent. Fluorine kills bacteria. Fluorine is a yellow coloured gas at room temperature.

Key Stage 4

The chemical symbol for Fluorine. A 2 dimensional representation of the Bohr Model of a Fluorine-19 isotope with 9 protons and 10 neutrons in the nucleus and 2 electrons in the first shell and 7 in the outer shell.

Meaning

Fluorine is a Group 7 element, on the Periodic Table, with 9 protons in the nucleus.

About Fluorine

Molecular Structure

Fluorine has the chemical formula F2. Fluorine atoms join together in a covalent bond.

A dot and cross diagram of a Fluorine molecule.

Atomic Structure

The most stable isotope of Fluorine has 10 neutrons in its nucleus giving it an atomic mass of 19. An atom of Fluorine is missing one electron from having a full outer shell. Fluoride ions gain 1 electron to get a full outer shell and become negatively charged.

A diagram showing the formation of a Fluoride ion.

Properties

Fluorine is a non-metal element. Fluorine is the most reactive Halogen. Fluorine reacts strongly with Hydrogen to produce Hydrogen Fluoride which dissolves in water to produce Hydrofluoric Acid. Fluorine is a strong bleaching agent. Fluorine kills bacteria. Fluorine is a yellow coloured gas at standard temperature and pressure.

Testing For Fluorine

1. Collect the gas in a test tube.
2. Place a piece of litmus paper over the mouth of the test tube.
3. If the litmus paper is bleached white then the gas is Fluorine or Chlorine.

References

AQA

Fluorine, page 61, GCSE Chemistry, CGP, AQA Fluorine, page 61, GCSE Combined Science Trilogy; Chemistry, CGP, AQA Fluorine, pages 26, 44-5, 61, GCSE Chemistry; Student Book, Collins, AQA Retrieved from "https://keystagewiki.com/index.php?title=Fluorine&oldid=22927"