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[[Category: Done 2018-12-10]]
[[File:Mg.png|200px|thumb|Figure 1. Magnesium, with [[atomic number]] 12 and [[atomic weight]] of 24.305.<ref>Made internally by a member of the Energy Education team, with information from periodictable.com, Available: http://periodictable.com/Elements/001/index.html</ref>]]

<onlyinclude>'''Magnesium''' is the 12th [[element]] on the [[periodic table of elements]] and it is the eighth most abundant element in the earth's crust.</onlyinclude><ref name=info>Royal Society of Chemistry Periodic Table, ''Magnesium'' [Online], Available: http://www.rsc.org/periodic-table/element/12/magnesium</ref> Some of its properties are listed below:<ref name=info/>

{| class="wikitable"
|-
| '''[[Atomic weight]]''' || 24.305
|-
| '''[[Density]]''' (at 0oC) || 1.74 [[gram|g]]/cm3
|-
| '''[[Boiling point]]''' || 1363 [[Kelvin|K]]
|-
| '''[[Melting point]]''' || 923 K
|}

Magnesium is an alkaline Earth metal and it is naturally found in rocks and minerals.

Magnesium is an important element for humans, animals, and plants. Humans and animals need it for many of their enzymes to function properly and to maintain healthy bones. Plants contain magnesium as the central molecule in [[chlorophyll]], the compound that makes plants green.<ref name = NBB>John Emsley, "Nature’s Building Blocks: An A-Z Guide to the Elements", Oxford University Press, New York, 2nd Edition, 2011.</ref>

==Magnesium Uses==
[[File:Magnesium ribbon burning.jpg|thumb|Burning magnesium ribbon<ref>Chemistry World,"Podcasts: Magnesium Oxides", Accessed on Oct.8, 2018, Available: https://www.chemistryworld.com/podcasts/magnesium-oxide/7645.article</ref>]]
Magnesium is used as an [[alloy]]ing agent with other metals. It is strong and lightweight, so it improves the mechanical characteristics of alloys without drastically increasing the weight. It is not used on its own or in large amounts in compounds because it has a tendency to [[corrode]] and [[combustion|combust]]<ref name = info/>. Magnesium alloys are used in aircrafts, automotives, and many electronic goods, such as [[cell phone]]s and computers.<ref name = NBB/>

Ignited pure magnesium burns very brightly and easily, so it is used in fireworks and flares (Figure 2). In contrast to this, magnesium oxides and hydroxides are used to to increase the [[heat]] and fire resistance of plastics and building materials.<ref name = NBB/>

==Isotopes==
Magnesium has three [[isotope]]s found in nature:<ref name = info/>
{| class="wikitable"
|-
!Symbol!!Natural Abundance
|-
| 24Mg || 78.99%
|-
| 25Mg || 10%
|-
| 26Mg || 11.01%
|}

==Video==
The video below is from the University of Nottingham's [http://www.periodicvideos.com/ periodic videos project].<ref>See more videos from the University of Nottingham on different elements here: http://www.periodicvideos.com/</ref> They have created a complete suite of short videos on every element on the [[periodic table of elements]].

<html>
<iframe width="816" height="459" src="https://www.youtube.com/embed/FKkWdizutxI" frameborder="0" allowfullscreen></iframe>
</html>

==For Further Reading==
*[[Periodic table of elements]]
*[[Metal]]
*[[Alloy]]
*[[Combustion]]
*Or explore a [[Special:Random|random page]]

==References==
{{reflist}}

Magnesium - Revision history

Jmdonev: 1 revision imported

2dev>Jmdonev at 21:11, 15 November 2018