https://apm.bplaced.net/w/index.php?action=history&feed=atom&title=Cerium
Cerium - Revision history
2026-08-14T02:17:30Z
Revision history for this page on the wiki
MediaWiki 1.43.0
https://apm.bplaced.net/w/index.php?title=Cerium&diff=20293&oldid=prev
Apm at 15:53, 22 June 2026
2026-06-22T15:53:59Z
<p></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="en">
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 17:53, 22 June 2026</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l7">Line 7:</td>
<td colspan="2" class="diff-lineno">Line 7:</td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>as CeO<sub>2</sub> has a particularly high [[lattice scaled stiffness]]. <br></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>as CeO<sub>2</sub> has a particularly high [[lattice scaled stiffness]]. <br></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The [[lattice scaled stiffness]] of [[pyrite]] FeS<sub>2</sub> is still a bit higher.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The [[lattice scaled stiffness]] of [[pyrite]] FeS<sub>2</sub> <ins style="font-weight: bold; text-decoration: none;">([[pyrite structure]]) </ins>is still a bit higher.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>CeO<sub>2</sub> is cubic, space group: Fm3m, #225</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>CeO<sub>2</sub> is cubic, space group: Fm3m, #225</div></td></tr>
</table>
Apm
https://apm.bplaced.net/w/index.php?title=Cerium&diff=20292&oldid=prev
Apm at 15:52, 22 June 2026
2026-06-22T15:52:55Z
<p></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="en">
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 17:52, 22 June 2026</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l7">Line 7:</td>
<td colspan="2" class="diff-lineno">Line 7:</td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>as CeO<sub>2</sub> has a particularly high [[lattice scaled stiffness]]. <br></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>as CeO<sub>2</sub> has a particularly high [[lattice scaled stiffness]]. <br></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The [[lattice scaled stiffness]] of pyrite FeS <sub>2</sub> is still a bit higher.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The [[lattice scaled stiffness]] of <ins style="font-weight: bold; text-decoration: none;">[[</ins>pyrite<ins style="font-weight: bold; text-decoration: none;">]] </ins>FeS<sub>2</sub> is still a bit higher.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>CeO<sub>2</sub> is cubic, space group: Fm3m, #225</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>CeO<sub>2</sub> is cubic, space group: Fm3m, #225</div></td></tr>
</table>
Apm
https://apm.bplaced.net/w/index.php?title=Cerium&diff=20290&oldid=prev
Apm: Apm moved page Cer to Cerium: Cer is the German name, in English it is Cerium
2026-06-22T15:52:27Z
<p>Apm moved page <a href="/w/index.php?title=Cer" class="mw-redirect" title="Cer">Cer</a> to <a href="/w/index.php?title=Cerium" title="Cerium">Cerium</a>: Cer is the German name, in English it is Cerium</p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
<tr class="diff-title" lang="en">
<td colspan="1" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="1" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 17:52, 22 June 2026</td>
</tr><tr><td colspan="2" class="diff-notice" lang="en"><div class="mw-diff-empty">(No difference)</div>
</td></tr></table>
Apm
https://apm.bplaced.net/w/index.php?title=Cerium&diff=20289&oldid=prev
Apm: basic page
2026-06-22T15:51:59Z
<p>basic page</p>
<p><b>New page</b></p><div>[[File:E and Klm.gif|350px|thumb|right|'''Young’s modulus and the lattice-scaled stiffness<br />
for selected materials''' – See page [[lattice scaled stiffness]] for details.]]<br />
<br />
Cerium is not the most abundant element. But also not extremely rare.<br><br />
<br />
Cerium is possibly of interest for early primitive [[force applying mechanosynthesis]] <br><br />
as CeO<sub>2</sub> has a particularly high [[lattice scaled stiffness]]. <br><br />
<br />
The [[lattice scaled stiffness]] of pyrite FeS <sub>2</sub> is still a bit higher.<br />
<br />
CeO<sub>2</sub> is cubic, space group: Fm3m, #225<br />
Natural occuring as the '''cerianite''' <br><br />
solid solution mixing with Thorium substituting for cerium. <br><br />
Since ThO<sub>2</sub> has the same structure it seems likely that <br><br />
the whole range of [[checkerboard compound]]s should be stable and accessible.<br />
<br />
Natural thorium is rather weakly radioactive (like natural uranium) <br><br />
thus safely as a solid non dusting mineral with a bit of care.<br />
<br />
== Related ==<br />
<br />
* [[Chemical element]]<br />
* [[Lattice scaled stiffness]]<br />
<br />
== External links ==<br />
<br />
* https://en.wikipedia.org/wiki/Cerium(IV)_oxide<br />
* https://en.wikipedia.org/wiki/Cerianite-(Ce) 7.3g/ccm<br />
* https://en.wikipedia.org/wiki/Thorium_dioxide<br />
* https://en.wikipedia.org/wiki/Thorianite Mohs 6.5 to 7.0 9.7g/ccm</div>
Apm