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Hafnij - Povijest promjena
2026-07-16T03:12:03Z
Povijest promjena ove stranice na wikiju
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Suradnik10: Zamjena teksta - '{{(.)ječnik' u '{{HIEslovar'
2026-03-10T03:37:21Z
<p>Zamjena teksta - '{{(.)ječnik' u '{{HIEslovar'</p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Inačica od 10. ožujak 2026. u 03:37</td>
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<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>Hafnij su [[1923.]] godine otkrili [[Dirk Costner]] ([[Nizozemska]]) i [[Georg Karl von Hevesy]] ([[Mađarska]]). Ime je dobio po latinskom nazivu za [[Kopenhagen]] - ''Hafnia''.</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>Hafnij su [[1923.]] godine otkrili [[Dirk Costner]] ([[Nizozemska]]) i [[Georg Karl von Hevesy]] ([[Mađarska]]). Ime je dobio po latinskom nazivu za [[Kopenhagen]] - ''Hafnia''.</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>{{<del style="font-weight: bold; text-decoration: none;">wječnik</del>}}</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>{{<ins style="font-weight: bold; text-decoration: none;">HIEslovar</ins>}}</div></td></tr>
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<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>==Izvori==</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>==Izvori==</div></td></tr>
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Suradnik10
https://enciklopedija.cc/index.php?title=Hafnij&diff=413057&oldid=prev
WikiSysop: brisanje nepotrebnog teksta
2022-03-06T21:43:41Z
<p>brisanje nepotrebnog teksta</p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Inačica od 6. ožujak 2022. u 21:43</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Redak 1:</td>
<td colspan="2" class="diff-lineno">Redak 1:</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><del style="font-weight: bold; text-decoration: none;"><!--'''Hafnij'''--></del>{{Kemijski_element </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>{{Kemijski_element </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;"><div>| ime = Hafnij </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>| ime = Hafnij </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;"><div>| simbol = Hf </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>| simbol = Hf </div></td></tr>
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WikiSysop
https://enciklopedija.cc/index.php?title=Hafnij&diff=14879&oldid=prev
WikiSysop: Bot: Automatski unos stranica
2021-07-26T09:16:15Z
<p>Bot: Automatski unos stranica</p>
<p><b>Nova stranica</b></p><div><!--'''Hafnij'''-->{{Kemijski_element <br />
| ime = Hafnij <br />
| simbol = Hf <br />
| redni_broj = 72 <br />
| kemijska_skupina = prijelazni metali <br />
| grupa = 4 <br />
| perioda = 6 <br />
| blok = d <br />
| gustoca = 13310 <br />
| tvrdoca = 5,5 <br />
| izgled = čelično siva [[Krutine|krutina]]<br />[[Datoteka:Hf-crystal_bar.jpg|220px]] <br />
| specificni_toplinski_kapacitet = 25,73<br />
| taliste = 2233<br />
| vreliste = 4603<br />
| toplina_taljenja = 27,2<br />
| toplina_isparivanja = 571<br />
| atomska_masa = 178,49(2) <br />
| EK1 = Ksenon <br />
| EK2 = Xe <br />
| e_konfiguracija = 4f<sup>14</sup>5d<sup>2</sup>6s<sup>2</sup> <ref name="Sebastian Blumentritt">Sebastian Blumentritt ''Periodensystem der Elemente'', 6. izd., Blume-Verlag, Münster (Savezna Republika Njemačka), 2012., {{ISBN|978-3-942-53009-5}}, str. 1</ref><br />
}}<br />
<br />
To je metal visokog srebrnog sjaja otporan na koroziju. Pošto je mekan, može se izvlačiti, valjati i kovati.<br/><br />
Na izloženoj površini stvara se oksidni film. Otporan je na lužine i kiseline (osim HF). Metalni se prah sam zapali i gori na zraku. Njegova gustoća i tvrdoća iznose 13310&nbsp;kg/m<sup>3</sup>, 5,5. Hafnij je zastupljen u zemljinoj kori u količini od 5,3 ppm (en. ''parts per million''). Spojevi hafnija toliko su slični spojevima [[cirkonij]]a da ih je skoro nemoguće značajnije odvojiti. Najvažniji mineral hafnija je: [[alvit]] (Hf,Th,Zr)SiO4• x H2O<br />
<br />
Legira se s mnogim metalima. Hafnijev karbid i nitrid ubrajaju se u izrazito vatrostalne materijale.<br />
<br />
Hafnij su [[1923.]] godine otkrili [[Dirk Costner]] ([[Nizozemska]]) i [[Georg Karl von Hevesy]] ([[Mađarska]]). Ime je dobio po latinskom nazivu za [[Kopenhagen]] - ''Hafnia''.<br />
<br />
{{wječnik}}<br />
<br />
==Izvori==<br />
{{izvori}}<br />
<br />
{{Kemijski elementi}}<br />
<br />
[[Kategorija:Kemijski elementi]]</div>
WikiSysop