Difference between revisions of "Lithium"
(9 intermediate revisions by the same user not shown) | |||
Line 3: | Line 3: | ||
[[Lithium]] is a [[metal]]. | [[Lithium]] is a [[metal]]. | ||
==Key Stage 3== | ==Key Stage 3== | ||
+ | [[File:LithiumSymbol1.png|right|300px|thumb|The [[Chemical Symbol|chemical symbol]] for [[Lithium]].]] | ||
+ | [[File:Li-7_WK.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. | ||
===About Lithium=== | ===About Lithium=== | ||
Line 21: | Line 22: | ||
==Key Stage 4== | ==Key Stage 4== | ||
+ | [[File:LiKS4.png|right|200px|thumb|The [[Chemical Symbol|chemical symbol]] for [[Lithium]].]] | ||
+ | [[File:Li-7_WK.PNG|right|200px|thumb|A 2 dimensional representation of the [[Bohr Model]] of a [[Lithium]]-7 [[isotope]] with 3 [[proton]]s and 4 [[neutron]]s in the [[Atomic Nucleus|nucleus]] and 2 [[electron]]s in the first [[Electron Orbital|shell]] and 1 in the [[Outer Shell|outer shell]].]] | ||
===Meaning=== | ===Meaning=== | ||
[[Lithium]] is a [[Group 1]] [[element]], on the [[Periodic Table]], with 3 [[proton]]s in the [[Atomic Nucleus|nucleus]]. | [[Lithium]] is a [[Group 1]] [[element]], on the [[Periodic Table]], with 3 [[proton]]s in the [[Atomic Nucleus|nucleus]]. | ||
Line 30: | Line 33: | ||
: The most [[Stable Isotope|stable isotope]] of [[Lithium]] has 4 [[neutron]]s in its [[Atomic Nucleus|nucleus]] giving it an [[Relative Atomic Mass|atomic mass]] of 7. | : The most [[Stable Isotope|stable isotope]] of [[Lithium]] has 4 [[neutron]]s in its [[Atomic Nucleus|nucleus]] giving it an [[Relative Atomic Mass|atomic mass]] of 7. | ||
: An [[atom]] of [[Lithium]] has only 1 [[electron]] in its [[Outer Shell|outer shell]]. | : An [[atom]] of [[Lithium]] has only 1 [[electron]] in its [[Outer Shell|outer shell]]. | ||
− | : [[Lithium]] [[ion]]s have lost an [[electron]] to become [[Positive | + | : [[Lithium]] [[ion]]s have lost an [[electron]] to become [[Positive Charge|positively charged]]. |
{| class="wikitable" | {| class="wikitable" | ||
|- | |- | ||
Line 44: | Line 47: | ||
: [[Lithium]] [[Chemical Reaction|reacts]] strongly with [[water]] to produce [[Hydrogen]] [[gas]] and [[Lithium Hydroxide]]. | : [[Lithium]] [[Chemical Reaction|reacts]] strongly with [[water]] to produce [[Hydrogen]] [[gas]] and [[Lithium Hydroxide]]. | ||
: [[Lithium]] is a [[solid]] at [[STP|standard temperature and pressure]] with a [[Melting Point|melting point]] of 180.50 [[Degrees Celsius|°C]]. | : [[Lithium]] is a [[solid]] at [[STP|standard temperature and pressure]] with a [[Melting Point|melting point]] of 180.50 [[Degrees Celsius|°C]]. | ||
+ | |||
+ | ==Beyond the Curriculum== | ||
+ | {{#ev:youtube|https://www.youtube.com/watch?v=byGE-bhNzOY}} |
Latest revision as of 13:51, 19 February 2021
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.