Difference between revisions of "Chemical Symbol"
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==Key Stage 3== | ==Key Stage 3== | ||
===Meaning=== | ===Meaning=== | ||
| + | [[File:ElementTile.png|right|400px|thumb|An [[element]] tile showing the [[Chemical Symbol]].]] | ||
A [[Chemical Symbol]] is a shortened name for an [[element]]. | A [[Chemical Symbol]] is a shortened name for an [[element]]. | ||
===About Chemical Symbols=== | ===About Chemical Symbols=== | ||
: [[Chemical Symbol]]s are used to write [[Balanced Symbol Equation]]s. | : [[Chemical Symbol]]s are used to write [[Balanced Symbol Equation]]s. | ||
| + | : Most [[Chemical Symbol]]s use the letters in their name for the symbol but some use letters from their old names. An example of this is [[Lead]] which has the symbol [[Lead|Pb]] because it used to be called 'plumbum'. | ||
===Examples=== | ===Examples=== | ||
| + | |||
{| class="wikitable" | {| class="wikitable" | ||
| style="height:20px; width:200px; text-align:center;" |'''Hydrogen''' | | style="height:20px; width:200px; text-align:center;" |'''Hydrogen''' | ||
| Line 23: | Line 26: | ||
|[[File:BerylliumSymbol.png|center|200px]] | |[[File:BerylliumSymbol.png|center|200px]] | ||
|- | |- | ||
| − | | style="height:20px; width:200px; text-align:center;" |[[Hydrogen]] has the symbol [[H]]. | + | | style="height:20px; width:200px; text-align:center;" |[[Hydrogen]] has the symbol [[Hydrogen|H]]. The [[Relative Atomic Mass|mass number]] shows there is 1 [[particle]] in the [[nucleus]] and the [[Atomic Number|atomic number]] shows that it has 1 [[proton]]. |
| − | | style="height:20px; width:200px; text-align:center;" |[[Helium]] has the symbol [[He]]. | + | | style="height:20px; width:200px; text-align:center;" |[[Helium]] has the symbol [[Helium|He]]. The [[Relative Atomic Mass|mass number]] shows there are 4 [[particle]]s in the [[nucleus]] and the [[Atomic Number|atomic number]] shows that it has 2 [[proton]]s. |
| − | | style="height:20px; width:200px; text-align:center;" |[[Lithium]] has the symbol [[Li]]. | + | | style="height:20px; width:200px; text-align:center;" |[[Lithium]] has the symbol [[Lithium|Li]]. The [[Relative Atomic Mass|mass number]] shows there are 7 [[particle]]s in the [[nucleus]] and the [[Atomic Number|atomic number]] shows that it has 3 [[proton]]s. |
| − | | style="height:20px; width:200px; text-align:center;" |[[Beryllium]] has the symbol [[Be]]. | + | | style="height:20px; width:200px; text-align:center;" |[[Beryllium]] has the symbol [[Beryllium|Be]]. The [[Relative Atomic Mass|mass number]] shows there are 9 [[particle]]s in the [[nucleus]] and the [[Atomic Number|atomic number]] shows that it has 4 [[proton]]s. |
|} | |} | ||
| + | |||
| + | Some unusual symbols you may know: | ||
| + | *[[Sodium]] = [[Sodium|Na]] | ||
| + | *[[Potassium]] = [[Potassium|K]] | ||
| + | *[[Iron]] = [[Iron|Fe]] | ||
| + | *[[Tungsten]] = [[Tungsten|W]] | ||
| + | *[[Silver]] = [[Silver|Ag]] | ||
| + | *[[Gold]] = [[Gold|Au]] | ||
| + | *[[Lead]] = [[Lead|Pb]] | ||
| + | *[[Tin]] = [[Tin|Sn]] | ||
| + | *[[Mercury (Element)|Mercury]] = [[Mercury (Element)|Hg]] | ||
| + | |||
| + | ==Key Stage 4== | ||
| + | ===Meaning=== | ||
| + | A [[Chemical Symbol]] is a shortened name for an [[element]] and how different [[element]]s are represented in [[Chemical Formula|chemical formulae]]. | ||
| + | |||
| + | ===About Chemical Symbols=== | ||
| + | : [[Chemical Symbol]]s are used to write [[Chemical Formula|chemical formulae]] and [[Balanced Symbol Equation]]s. | ||
| + | : Most [[Chemical Symbol]]s use the letters in their name for the symbol but some use letters from their old names. An example of this is [[Lead]] which has the symbol [[Lead|Pb]] because it used to be called 'plumbum'. | ||
| + | : The '''chemical symbols''' of all the [[element]]s can be seen on the [[Periodic Table]]: | ||
| + | {| class="wikitable" | ||
| + | |- | ||
| + | |[[File:PeriodicTableKS4.png|center|600px]] | ||
| + | |} | ||
| + | In a [[Chemical Formula|chemical formula]] the '''chemical symbols''' are written together with numbers to represent the number of each [[element]] in that [[chemical]]. | ||
| + | *MgBr<sub>2</sub>: [[Magnesium Bromide]] with one [[Magnesium]] [[atom]] and two [[Bromine]] [[atom]]s. | ||
| + | *CO<sub>2</sub>: [[Carbon Dioxide]] with one [[Carbon]] [[atom]] and two [[Oxygen]] [[atom]]s. | ||
| + | *Li<sub>2</sub>O: [[Lithium Oxide]] with two [[Lithium]] [[atom]]s and one [[Oxygen]] [[atom]]. | ||
| + | |||
| + | ===References=== | ||
| + | ====AQA==== | ||
| + | |||
| + | :[https://www.amazon.co.uk/gp/product/0198359381/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359381&linkCode=as2&tag=nrjc-21&linkId=47c8d1ae58d8b3a5e2094cd447154558 ''Chemical symbols, pages 4-5, GCSE Chemistry; Third Edition, Oxford University Press, AQA ''] | ||
| + | |||
| + | ====OCR==== | ||
| + | :[https://www.amazon.co.uk/gp/product/0198359829/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359829&linkCode=as2&tag=nrjc-21&linkId=90e8d7b4f039d53035238fa0320fe00b ''Chemical symbols, page 28, Gateway GCSE Chemistry, Oxford, OCR ''] | ||
Latest revision as of 13:36, 1 December 2019
Contents
Key Stage 3
Meaning
A Chemical Symbol is a shortened name for an element.
About Chemical Symbols
- Chemical Symbols are used to write Balanced Symbol Equations.
- Most Chemical Symbols use the letters in their name for the symbol but some use letters from their old names. An example of this is Lead which has the symbol Pb because it used to be called 'plumbum'.
Examples
| Hydrogen | Helium | Lithium | Beryllium |
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| Hydrogen has the symbol H. The mass number shows there is 1 particle in the nucleus and the atomic number shows that it has 1 proton. | Helium has the symbol He. The mass number shows there are 4 particles in the nucleus and the atomic number shows that it has 2 protons. | Lithium has the symbol Li. The mass number shows there are 7 particles in the nucleus and the atomic number shows that it has 3 protons. | Beryllium has the symbol Be. The mass number shows there are 9 particles in the nucleus and the atomic number shows that it has 4 protons. |
Some unusual symbols you may know:
Key Stage 4
Meaning
A Chemical Symbol is a shortened name for an element and how different elements are represented in chemical formulae.
About Chemical Symbols
- Chemical Symbols are used to write chemical formulae and Balanced Symbol Equations.
- Most Chemical Symbols use the letters in their name for the symbol but some use letters from their old names. An example of this is Lead which has the symbol Pb because it used to be called 'plumbum'.
- The chemical symbols of all the elements can be seen on the Periodic Table:
 |
In a chemical formula the chemical symbols are written together with numbers to represent the number of each element in that chemical.
- MgBr2: Magnesium Bromide with one Magnesium atom and two Bromine atoms.
- CO2: Carbon Dioxide with one Carbon atom and two Oxygen atoms.
- Li2O: Lithium Oxide with two Lithium atoms and one Oxygen atom.