Difference between revisions of "Lithium"
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==Key Stage 3== | ==Key Stage 3== | ||
[[File:LithiumSymbol1.png|right|300px|thumb|The [[Chemical Symbol|chemical symbol]] for [[Lithium]].]] | [[File:LithiumSymbol1.png|right|300px|thumb|The [[Chemical Symbol|chemical symbol]] for [[Lithium]].]] | ||
− | [[File:Lithium2dWK.PNG|right|200px|thumb|A 2 dimensional representation of a [[Lithium]] [[atom]] with 3 [[proton]]s and 4 [[neutron]]s in the [[Atomic Nucleus|nucleus]] and 3 [[electron]] orbiting the [[Atomic Nucleus|nucleus]].]] | + | [[File:Lithium2dWK.PNG|right|200px|thumb|A 2 dimensional representation of a [[Lithium]] [[atom]] with 3 [[proton]]s and 4 [[neutron]]s in the [[Atomic Nucleus|nucleus]] and 3 [[electron]]s orbiting the [[Atomic Nucleus|nucleus]].]] |
===Meaning=== | ===Meaning=== | ||
[[Lithium]] is a [[Group 1]] [[element]], on the [[Periodic Table]], with an [[Atomic Number|atomic number]] of 3. | [[Lithium]] is a [[Group 1]] [[element]], on the [[Periodic Table]], with an [[Atomic Number|atomic number]] of 3. |
Revision as of 14:02, 12 March 2020
Contents
Key Stage 2
Meaning
Key Stage 3
Meaning
Lithium is a Group 1 element, on the Periodic Table, with an atomic number of 3.
About Lithium
Molecular Structure
- Lithium has the chemical symbol Li.
- Lithium atoms join together in large numbers to form a giant metal molecule.
Atomic Structure
- Lithium has 3 protons and 4 neutrons in its nucleus giving it an Atomic Number of 3 and an atomic mass of 7.
- An atom of Lithium has only 1 electron in its outer shell.
Properties
- Lithium is the least reactive Alkali Metal.
- Lithium is more reactive than Carbon on the reactivity series so it must be extracted from its ore using electrolysis.
- Lithium oxidises quickly in the presence of Oxygen so it must be stored in oil.
- Lithium reacts strongly with water to produce Hydrogen gas and Lithium Hydroxide.
- Lithium is a solid at room temperature.
Key Stage 4
Meaning
Lithium is a Group 1 element, on the Periodic Table, with 3 protons in the nucleus.
About Lithium
Molecular Structure
- Lithium has the chemical symbol Li.
- Lithium atoms join together in a giant metallic structure.
Atomic Structure
- The most stable isotope of Lithium has 4 neutrons in its nucleus giving it an atomic mass of 7.
- An atom of Lithium has only 1 electron in its outer shell.
- Lithium ions have lost an electron to become positively charged.
A diagram showing the formation of a Lithium ion. |
Properties
- Lithium is the least reactive Alkali Metal.
- Lithium is more reactive than Carbon on the reactivity series so it must be extracted from its ore using electrolysis.
- Lithium oxidises quickly in the presence of Oxygen so it must be stored in oil.
- Lithium reacts strongly with water to produce Hydrogen gas and Lithium Hydroxide.
- Lithium is a solid at standard temperature and pressure with a melting point of 180.50 °C.