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	<id>https://traveller.m9s5ever.co.uk/index.php?action=history&amp;feed=atom&amp;title=Template%3AInfobox_gallium</id>
	<title>Template:Infobox gallium - Revision history</title>
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	<updated>2026-10-18T11:30:23Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://traveller.m9s5ever.co.uk/index.php?title=Template:Infobox_gallium&amp;diff=714&amp;oldid=prev</id>
		<title>imported&gt;DePiep: /* top */rm unused parameter (read from dataset), removed: |category comment=
, |group=13
, |period=4
, |block=p</title>
		<link rel="alternate" type="text/html" href="https://traveller.m9s5ever.co.uk/index.php?title=Template:Infobox_gallium&amp;diff=714&amp;oldid=prev"/>
		<updated>2021-05-31T16:43:02Z</updated>

		<summary type="html">&lt;p&gt;&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;top: &lt;/span&gt;rm unused parameter (read from dataset), removed: |category comment= , |group=13 , |period=4 , |block=p&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;{{Infobox element&lt;br /&gt;
|name=gallium&lt;br /&gt;
|number=31&lt;br /&gt;
|symbol=Ga&lt;br /&gt;
|abundance=&lt;br /&gt;
|abundance in earth's crust=&lt;br /&gt;
|abundance in oceans=&lt;br /&gt;
|abundance in solar system=&lt;br /&gt;
|left=[[zinc]]&lt;br /&gt;
|right=[[germanium]]&lt;br /&gt;
|above=[[aluminium|Al]]&lt;br /&gt;
|below=[[Indium|In]]&lt;br /&gt;
|appearance=silvery blue&lt;br /&gt;
|image name=Gallium crystals.jpg&lt;br /&gt;
|electrons per shell=2, 8, 18, 3&lt;br /&gt;
|phase=&lt;br /&gt;
|density gpcm3nrt=5.91&lt;br /&gt;
|density gpcm3mp=6.095&lt;br /&gt;
|melting point K=302.9146&lt;br /&gt;
|melting point C=29.7646&lt;br /&gt;
|melting point F=85.5763&lt;br /&gt;
|boiling point K=2673&lt;br /&gt;
|boiling point ref=&amp;lt;ref name=Zhang&amp;gt;{{cite journal|doi=10.1021/je1011086|title=Corrected Values for Boiling Points and Enthalpies of Vaporization of Elements in Handbooks|url=https://www.researchgate.net/publication/231538496_Corrected_Values_for_Boiling_Points_and_Enthalpies_of_Vaporization_of_Elements_in_Handbooks|author=Zhang Y|author2= Evans JRG |author3= Zhang S|journal=J. Chem. Eng. Data|year=2011|volume=56 |issue=2|pages=328–337}}&amp;lt;/ref&amp;gt;&lt;br /&gt;
|boiling point C=2400&lt;br /&gt;
|boiling point F=4352&lt;br /&gt;
|triple point K=&lt;br /&gt;
|triple point kPa=&lt;br /&gt;
|critical point K=&lt;br /&gt;
|critical point MPa=&lt;br /&gt;
|heat fusion=5.59&lt;br /&gt;
|heat fusion 2=&lt;br /&gt;
|heat vaporization=256&lt;br /&gt;
|heat vaporization ref=&amp;lt;ref name=Zhang/&amp;gt;&lt;br /&gt;
|heat capacity=25.86&lt;br /&gt;
|vapor pressure 1=1310&lt;br /&gt;
|vapor pressure 10=1448&lt;br /&gt;
|vapor pressure 100=1620&lt;br /&gt;
|vapor pressure 1 k=1838&lt;br /&gt;
|vapor pressure 10 k=2125&lt;br /&gt;
|vapor pressure 100 k=2518&lt;br /&gt;
|vapor pressure comment=&lt;br /&gt;
|crystal structure=orthorhombic&lt;br /&gt;
|electronegativity=1.81&lt;br /&gt;
|number of ionization energies=4&lt;br /&gt;
|ionization energy 1=578.8&lt;br /&gt;
|ionization energy 2=1979.3&lt;br /&gt;
|ionization energy 3=2963&lt;br /&gt;
|atomic radius=135&lt;br /&gt;
|atomic radius calculated=&lt;br /&gt;
|covalent radius=122±3&lt;br /&gt;
|Van der Waals radius=187&lt;br /&gt;
|magnetic ordering=[[diamagnetism|diamagnetic]]&lt;br /&gt;
|Curie point K=&lt;br /&gt;
|electrical resistivity unit prefix=n&lt;br /&gt;
|electrical resistivity at 0=&lt;br /&gt;
|electrical resistivity at 20=270&lt;br /&gt;
|thermal conductivity=40.6&lt;br /&gt;
|thermal conductivity 2=&lt;br /&gt;
|thermal diffusivity=&lt;br /&gt;
|thermal expansion=&lt;br /&gt;
|thermal expansion at 25=18&lt;br /&gt;
|speed of sound=&lt;br /&gt;
|speed of sound rod at 20=2740&lt;br /&gt;
|speed of sound rod at r.t.=&lt;br /&gt;
|magnetic susceptibility= {{val|−21.6|e=−6}}&lt;br /&gt;
|magnetic susceptibility ref= &amp;amp;#x20;(at 290&amp;amp;nbsp;K)&amp;lt;ref&amp;gt;{{Cite book|title=CRC, Handbook of Chemistry and Physics|last=Weast|first=Robert|publisher=Chemical Rubber Company Publishing|year=1984|isbn=0-8493-0464-4|location=Boca Raton, Florida|pages=E110}}&amp;lt;/ref&amp;gt;&lt;br /&gt;
|Young's modulus=9.8&lt;br /&gt;
|Shear modulus=&lt;br /&gt;
|Bulk modulus=&lt;br /&gt;
|Poisson ratio=0.47&lt;br /&gt;
|Mohs hardness=1.5&lt;br /&gt;
|Vickers hardness=&lt;br /&gt;
|Brinell hardness=56.8–68.7&lt;br /&gt;
|CAS number=7440-55-3&lt;br /&gt;
|isotopes=&lt;br /&gt;
{{Infobox element/isotopes decay | mn=66 | sym=Ga | na=[[synthetic radioisotope|syn]] |hl=9.5&amp;amp;nbsp;h |dm=[[beta plus decay|β&amp;lt;sup&amp;gt;+&amp;lt;/sup&amp;gt;]] |de=4.153 |link1=zinc-66 |pn=66 |ps=Zn}}&lt;br /&gt;
{{Infobox element/isotopes decay | mn=67 | sym=Ga | na=syn |hl=3.3&amp;amp;nbsp;d |dm=[[electron capture|ε]] |de=1.001 |link1=zinc-67 |pn=67 |ps=Zn}}&lt;br /&gt;
{{Infobox element/isotopes decay |mn=68 |sym=Ga |na=syn |hl=1.2&amp;amp;nbsp;h|dm=β&amp;lt;sup&amp;gt;+&amp;lt;/sup&amp;gt; |de=1.899 |link1=zinc-68 |pn=68 |ps=Zn}}&lt;br /&gt;
{{Infobox element/isotopes stable | mn=69 | sym=Ga | na=60.11% | n=38 |firstlinks=yes}}&lt;br /&gt;
{{Infobox element/isotopes decay2 |mn=70|sym=Ga|na=syn|hl=21&amp;amp;nbsp;min |dm1=[[beta minus decay|β&amp;lt;sup&amp;gt;−&amp;lt;/sup&amp;gt;]]|de1=1.653|link1=germanium-70 |pn1=70|ps1=Ge |dm2=ε|de2=0.655|link2=zinc-70 |pn2=70 |ps2=Zn}}&lt;br /&gt;
{{Infobox element/isotopes stable | mn=71 | sym=Ga | na=39.89% | n=40 |firstlinks=no}}&lt;br /&gt;
{{Infobox element/isotopes decay |mn=72 |sym=Ga |na=syn |hl=14.1&amp;amp;nbsp;h|dm=β&amp;lt;sup&amp;gt;−&amp;lt;/sup&amp;gt;|de=3.997|link1=germanium-72|pn=72|ps=Ge}}&lt;br /&gt;
{{Infobox element/isotopes decay|mn=73|sym=Ga|na=syn|hl=4.9&amp;amp;nbsp;h|dm=β&amp;lt;sup&amp;gt;−&amp;lt;/sup&amp;gt;|de=1.598|link1=germanium-73|pn=73|ps=Ge}}&lt;br /&gt;
|isotopes comment=&lt;br /&gt;
|naming=after {{lang|la|Gallia}} (Latin for: France), homeland of the discoverer&lt;br /&gt;
|predicted by=[[Dmitri Mendeleev]]&lt;br /&gt;
|prediction date=1871&lt;br /&gt;
|discovery and first isolation by=[[Lecoq de Boisbaudran]]&lt;br /&gt;
|discovery date=1875&lt;br /&gt;
|QID=Q861&lt;br /&gt;
}}&amp;lt;!--&lt;br /&gt;
&lt;br /&gt;
--&amp;gt;&amp;lt;noinclude&amp;gt;&lt;br /&gt;
{{Infobox element/element navigation|symbol=Ga}}&lt;br /&gt;
{{Template reference list}}&lt;br /&gt;
{{documentation|1=Template:Infobox element/doc}}&lt;br /&gt;
&amp;lt;/noinclude&amp;gt;&lt;/div&gt;</summary>
		<author><name>imported&gt;DePiep</name></author>
	</entry>
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