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[[Lithium]] is a [[Group 1]] [[element]], on the [[Periodic Table]], with an [[Atomic Number|atomic number]] of 3.
===About Lithium===
====Molecular Structure====
: [[Lithium]] has the [[Chemical Formula|chemical formula]] [[Lithium|Li]].
: [[Lithium]] [[atom]]s join together in large numbers to form a giant [[metal]] [[molecule]].
====Atomic Structure====
: [[Lithium]] has 3 [[proton]]s and 4 [[neutron]]s in its [[Atomic Nucleus|nucleus]] giving it an [[Atomic Number]] of 3 and an [[Relative Atomic Mass|atomic mass]] of 7.
: An [[atom]] of [[Lithium]] has only 1 [[electron]] in its [[Outer Shell|outer shell]].
====Properties====
: [[Lithium]] is the least [[Reactivity|reactive]] [[Alkali Metal]].
: [[Lithium]] is more [[Reactivity|reactive]] than [[Carbon]] on the [[Reactivity Series|reactivity series]] so it must be [[Extraction of Metals|extracted]] from its [[ore]] using [[electrolysis]].
: [[Lithium]] [[Chemical Reaction|reacts]] strongly with [[water]] to produce [[Hydrogen]] [[gas]] and [[Lithium Hydroxide]].
: [[Lithium]] is a [[solid]] at [[STP|room temperature]].
==Key Stage 4==
[[Lithium]] is a [[Group 1]] [[element]], on the [[Periodic Table]], with 3 [[proton]]s in the [[Atomic Nucleus|nucleus]].
===About Lithium===
====Molecular Structure====
: [[Lithium]] has the [[Chemical Formula|chemical formula]] [[Lithium|Li]].
: [[Lithium]] [[atom]]s join together in a [[Giant Metallic Structure|giant metallic structure]].
====Atomic Structure====
: 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]].
: [[Lithium]] [[ion]]s have lost an [[electron]] to become [[Positive Charged|positively charged]].
====Properties====
: [[Lithium]] is the least [[Reactivity|reactive]] [[Alkali Metal]].
: [[Lithium]] is more [[Reactivity|reactive]] than [[Carbon]] on the [[Reactivity Series|reactivity series]] so it must be [[Extraction of Metals|extracted]] from its [[ore]] using [[electrolysis]].
: [[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]].