Difference between revisions of "Fluorine"
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: An [[atom]] of [[Fluorine]] has only 2 [[electron]]s in its [[Outer Shell|outer shell]]. | : An [[atom]] of [[Fluorine]] has only 2 [[electron]]s in its [[Outer Shell|outer shell]]. | ||
: [[Fluorine]] [[ion]]s gain 1 [[electron]] to get a full [[Outer Shell|outer shell]] and become [[Negative Charged|negatively charged]]. | : [[Fluorine]] [[ion]]s gain 1 [[electron]] to get a full [[Outer Shell|outer shell]] and become [[Negative Charged|negatively charged]]. | ||
− | + | ===Testing For Fluorine=== | |
#Collect the [[gas]] in a [[Test Tube|test tube]]. | #Collect the [[gas]] in a [[Test Tube|test tube]]. | ||
#Place a piece of [[Litmus Paper|litmus paper]] over the mouth of the [[Test Tube|test tube]]. | #Place a piece of [[Litmus Paper|litmus paper]] over the mouth of the [[Test Tube|test tube]]. | ||
#If the [[Litmus Paper|litmus paper]] is [[bleach]]ed white then the [[gas]] is [[Fluorine]] or [[Chlorine]]. | #If the [[Litmus Paper|litmus paper]] is [[bleach]]ed white then the [[gas]] is [[Fluorine]] or [[Chlorine]]. |
Revision as of 15:11, 31 March 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
- Fluorine has the chemical formula F2.
- Fluorine as 9 protons and 10 neutrons in its nucleus giving it an Atomic Number of 9 and an atomic mass of 19.
- 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.
- An atom of Fluorine is missing one electron from having a full outer shell.
- Fluorine ions gain 1 electron to get a full outer shell and become negatively charged.
Key Stage 4
Meaning
Fluorine is a Group 2 element, on the Periodic Table, with 9 protons in the nucleus.
About Fluorine
- Fluorine has the chemical formula F2.
- The most stable isotope of Fluorine has 10 neutrons in its nucleus giving it an atomic mass of 19.
- 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.
- An atom of Fluorine has only 2 electrons in its outer shell.
- Fluorine ions gain 1 electron to get a full outer shell and become negatively charged.
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.