Difference between revisions of "Electron"
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==Key Stage 5== | ==Key Stage 5== | ||
===Meaning=== | ===Meaning=== | ||
| − | An '''electron''' is a type of [[lepton]] with a [[Electrical Charge|charge]] of -1.60x10<sup>-19</sup> [[Coulomb]]s. | + | An '''electron''' ('''e''') is a type of [[lepton]] with a [[mass]] of 9.11x10<sup>-31</sup>kg and [[Electrical Charge|charge]] of -1.60x10<sup>-19</sup> [[Coulomb]]s. |
| + | |||
| + | ===About Electrons=== | ||
| + | : '''Electrons''' are [[Fundamental Particle|fundamental particles]] as they are not made of any smaller [[particle]]s. | ||
| + | : '''Electrons''' are affected by the: | ||
| + | :*[[Weak Nuclear Interaction]] | ||
| + | :*[[Electromagnetic Interaction]] | ||
| + | :*[[Gravitational Interaction]] | ||
| + | |||
| + | |||
| + | {| border="1" style="border-collapse:collapse" | ||
| + | | style="height:20px; width:120px; text-align:center;"|'''Lepton''' | ||
| + | | style="height:20px; width:120px; text-align:center;"|[[Electrical Charge|'''Charge''']]/[[Elementary Charge|e]] | ||
| + | | style="height:20px; width:120px; text-align:center;"|'''[[Strangeness]]''' | ||
| + | | style="height:20px; width:120px; text-align:center;"|'''[[Conservation of Baryon Number|Baryon Number]]''' | ||
| + | | style="height:20px; width:120px; text-align:center;"|'''[[Conservation of Lepton Number|Lepton Number]]''' | ||
| + | |- | ||
| + | | style="height:20px; width:120px; text-align:center;"| | ||
| + | [[Electron]] | ||
| + | | style="height:20px; width:120px; text-align:center;"|<math>Q=-1</math> | ||
| + | | style="height:20px; width:120px; text-align:center;"|<math>S=0</math> | ||
| + | | style="height:20px; width:120px; text-align:center;"|<math>B=0</math> | ||
| + | | style="height:20px; width:120px; text-align:center;"|<math>L=+1</math> | ||
| + | |- | ||
| + | | style="height:20px; width:120px; text-align:center;"| | ||
| + | [[Electron-Neutrino]] | ||
| + | | style="height:20px; width:120px; text-align:center;"|<math>Q=0</math> | ||
| + | | style="height:20px; width:120px; text-align:center;"|<math>S=0</math> | ||
| + | | style="height:20px; width:120px; text-align:center;"|<math>B=0</math> | ||
| + | | style="height:20px; width:120px; text-align:center;"|<math>L=+1</math> | ||
| + | |- | ||
| + | | style="height:20px; width:120px; text-align:center;"| | ||
| + | [[Positron]] | ||
| + | | style="height:20px; width:120px; text-align:center;"|<math>Q=+1</math> | ||
| + | | style="height:20px; width:120px; text-align:center;"|<math>S=0</math> | ||
| + | | style="height:20px; width:120px; text-align:center;"|<math>B=0</math> | ||
| + | | style="height:20px; width:120px; text-align:center;"|<math>L=-1</math> | ||
| + | |- | ||
| + | | style="height:20px; width:120px; text-align:center;"| | ||
| + | [[Antielectron-Neutrino]] | ||
| + | | style="height:20px; width:120px; text-align:center;"|<math>Q=0</math> | ||
| + | | style="height:20px; width:120px; text-align:center;"|<math>S=0</math> | ||
| + | | style="height:20px; width:120px; text-align:center;"|<math>B=0</math> | ||
| + | | style="height:20px; width:120px; text-align:center;"|<math>L=-1</math> | ||
| + | |- | ||
| + | |} | ||
Revision as of 18:09, 18 July 2019
Contents
Key Stage 3
Meaning
An electron is a small particle found orbiting the centre of an atom.
About Electrons
- Electrons negatively charged.
- In conductors electrons can pass easily from one atom to the next.
- When electrons move it is called an electrical current.
To see how electrons are arranged around the nucleus of atoms or to see how electrons move around a circuit click on the pictures below to play a PHET simulation.
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Key Stage 4
Meaning
The Electron is a negatively charged particle found orbit the nucleus of an atom in electron shells.
About Electrons
- Electrons have a relative atomic charge of -1 and a relative atomic mass of 1/1860.
- The electrons and their shells are responsible for the chemistry of an atom.
- When atoms bond to form molecules some atoms can share their electrons forming a Covalent Bond, some transfer an electron from one atom to another forming an Ionic Bond while others allow electrons to pass freely between many atoms forming a Metallic Bond.
Key Stage 5
Meaning
An electron (e) is a type of lepton with a mass of 9.11x10-31kg and charge of -1.60x10-19 Coulombs.
About Electrons
- Electrons are fundamental particles as they are not made of any smaller particles.
- Electrons are affected by the:
| Lepton | Charge/e | Strangeness | Baryon Number | Lepton Number |
| \(Q=-1\) | \(S=0\) | \(B=0\) | \(L=+1\) | |
| \(Q=0\) | \(S=0\) | \(B=0\) | \(L=+1\) | |
| \(Q=+1\) | \(S=0\) | \(B=0\) | \(L=-1\) | |
| \(Q=0\) | \(S=0\) | \(B=0\) | \(L=-1\) |