Difference between revisions of "Fluorine"
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: The most [[Stable Isotope|stable isotope]] of [[Fluorine]] has 10 [[neutron]]s in its [[Atomic Nucleus|nucleus]] giving it an [[Relative Atomic Mass|atomic mass]] of 19. | : The most [[Stable Isotope|stable isotope]] of [[Fluorine]] has 10 [[neutron]]s in its [[Atomic Nucleus|nucleus]] giving it an [[Relative Atomic Mass|atomic mass]] of 19. | ||
: An [[atom]] of [[Fluorine]] is missing one [[electron]] from having a full [[Outer Shell|outer shell]]. | : An [[atom]] of [[Fluorine]] is missing one [[electron]] from having a full [[Outer Shell|outer shell]]. | ||
| − | : '''Fluoride''' [[ion]]s gain 1 [[electron]] to get a full [[Outer Shell|outer shell]] and become [[Negative | + | : '''Fluoride''' [[ion]]s gain 1 [[electron]] to get a full [[Outer Shell|outer shell]] and become [[Negative Charge|negatively charged]]. |
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Revision as of 13:25, 5 April 2019
Contents
Key Stage 2
Meaning
Key Stage 3
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
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
- Collect the gas in a test tube.
- Place a piece of litmus paper over the mouth of the test tube.
- If the litmus paper is bleached white then the gas is Fluorine or Chlorine.