Jern

26 ManganJern/jarnKobolt


Fe

Ru
Generelle eigenskapar
Namn, kjemisk symbol,
atomnummer
Jern/jarn, Fe, 26
Kjemisk serie Transisjonsmetall
Gruppe, periode, blokk 8, 4, d
Tettleik, hardleik 7 784 kg/m3, 4,0 (ikkje SI)
Utsjånad Glinsande metallisk
med gråskjær
Jern/jarn
Atomeigenskapar
Atommasse 55,845 u (ikkje SI)
Atomradius (berekna) 140 (156) pm
Kovalent radius 125 pm
Ioneradius 64 pm (ladning: +3)
van der Waals radius (?) pm
Elektronkonfigurasjon [Ar]
Elektron per energinivå 2, 8, 14, 2
Oksidasjonstrinn (oksid) +2, +3, +4, +6 (amfotært)
Krystallstruktur Kubisk romsentrert
Fysiske eigenskapar
Tilstandsform Fast stoff
Smeltepunkt 1808 K (1535°C)
Kokepunkt 3023 K (2750°C)
Molart volum 7,09 cm3/mol
Fordampingsvarme 349,6 kJ/mol
Smeltevarme 13,8 kJ/mol
Damptrykk 7,05 Pa ved 1808 K
Ljodfart 4910 m/s ved 20 °C
Diverse eigenskapar
Elektronegativitet 1,83 (Paulings skala)
Spesifikk varmekapasitet 452 J/(kg·K)
Elektrisk konduktivitet 9,93 MS/m
Termisk konduktivitet 80,2 W/(m·K)
Ioniseringspotensial 762,5 kJ/mol
1561,9 kJ/mol
2957 kJ/mol
5290 kJ/mol
Mest stabile isotopar
Iso-
top
Naturleg
førekomst
Halverings-
tid
 (ikkje SI)
NM NE MeV
(ikkje SI)
NP
54Fe 5.8% (stabilt)
55Fe (kunstig) 2,73 år ε 0,231 55Mn
56Fe 91,72% (stabilt)
57Fe 2,2% (stabilt)
58Fe 0,28% (stabilt)
59Fe (kunstig) 44,503 d β 1,565 59Co
60Fe (kunstig) 1,5 mill. år β 3,978 60Co
SI-einingar og STP er brukt unntatt der det er avmerkt

Jern eller jarn er eit metallisk grunnstoff med kjemisk symbol Fe og atomnummer 26. Det høyrer til transisjonsmetalla og er plassert i gruppe 8 i periodesystemet. Jern er eit av dei vanlegaste metalla i jordskorpa. Jern er ferromagnetisk.

Utvinning

Jernmalm inneheld jernoksid. Malmen vert redusert til råjern. Smeltepunktet er 1535 grader celsius, mens kokepunktet er 2750 grader celsius.

Viktige sambindingar

Bruk

Stål er legeringar som inneheld mykje jern. Desse vert brukt til alt frå kjøkkenreiskap til bygningar. Eigenskapane til stålet er avhengig av kva andre metall som finst i legeringa.

Biologisk rolle

Jern finst som spormineral i hemoglobin og er viktig for oksygentransport i kroppen.

Sjå òg

Bakgrunnsstoff

Read other articles:

Untuk tempat lain yang bernama sama, lihat Tanjung (disambiguasi). TanjungNagariAir Terjun Ngalau Soda Nagari TanjungNegara IndonesiaProvinsiSumatera BaratKabupatenTanah DatarKecamatanSungayangKode Kemendagri13.04.07.2003 Luas25,00 km²Jumlah penduduk2.844 jiwa[1] Tanjung (Bahasa Minangkabau: Tanjuang; Bahasa Jawi: تانجونغ) merupakan nama sebuah nagari yang masuk ke dalam Kecamatan Sungayang, Kabupaten Tanah Datar, Provinsi Sumatera Barat, Indonesia. Nagari ini berjarak 8k...

Marché d’Aligre, Paris Straßenmarkt in Villa de Zaachila, Mexiko Ein Straßenmarkt ist ursprünglich eine kaum oder nur locker organisierte Verkaufsveranstaltung unter freiem Himmel, zu der Händler an einem bestimmten Ort zusammenkommen, um frische oder konservierte Lebensmittel (Butter, Käse) und andere Waren des täglichen Bedarfs zu verkaufen. Eine Organisation dieser Märkte fand erst im Lauf der Zeit statt – so entstanden allmählich die nur an einem bestimmten Wochentag errichte...

قرية القايص  - قرية -  تقسيم إداري البلد  اليمن المحافظة محافظة حجة المديرية مديرية قفل شمر العزلة عزلة المخلاف السكان التعداد السكاني 2004 السكان 177   • الذكور 85   • الإناث 92   • عدد الأسر 28   • عدد المساكن 29 معلومات أخرى التوقيت توقيت اليمن (+3 غرينيتش) تعد

Participation of Panama's national football team in the FIFA World Cup For the women's team, see Panama at the FIFA Women's World Cup. Panama national team at the 2018 World Cup in Russia Panama has qualified once for the FIFA World Cup, the 2018 edition. They directly qualified after securing the third spot in the hexagonal on the final round. This meant that after 10 failed qualification campaigns, Panama appeared at the World Cup for the first time in their history.[1] Overall reco...

Language spoken by a minority of the population of a territory This article includes a list of general references, but it lacks sufficient corresponding inline citations. Please help to improve this article by introducing more precise citations. (June 2010) (Learn how and when to remove this template message) A minority language is a language spoken by a minority of the population of a territory. Such people are termed linguistic minorities or language minorities. With a total number of 196 s...

Koordinat: 33°44′54″N 84°25′02″W / 33.748471°N 84.417106°W / 33.748471; -84.417106 Arena Forbes (bahasa Inggris: Forbes Arena) adalah arena serbaguna berkapasitas 6.000 kursi di Atlanta, Georgia, AS.[1] Ini adalah rumah bagi Morehouse College Maroon Tigers basket tim. Itu juga menjadi tuan rumah pertandingan pendahuluan bola basket selama Olimpiade Musim Panas 1996[2] dan merupakan arena kandang bagi Atlanta Glory. Dibuka pada tahun 1996...

For the Scottish football player, see Josh O'Connor (footballer). British actor Josh O'ConnorO'Connor in 2015Born1989 or 1990 (age 33–34)Southampton, EnglandEducationBristol Old Vic Theatre SchoolOccupationActorYears active2012–presentRelativesJohn Bunting (grandfather)Madeleine Bunting (aunt) Josh O'Connor (born in 1989/1990)[1] is a British actor. After training at the Bristol Old Vic Theatre School, he had supporting roles in television series such as Doct...

This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these template messages) This article relies excessively on references to primary sources. Please improve this article by adding secondary or tertiary sources. Find sources: TopSky – news · newspapers · books · scholar · JSTOR (August 2011) (Learn how and when to remove this template message) This article's lead section conta...

51.618326.754536Koordinaten: 51° 37′ 6″ N, 6° 45′ 16″ OStollbach (Naturschutzgebiet)​ Das Naturschutzgebiet Stollbach liegt auf dem Gebiet der Gemeinde Hünxe im Kreis Wesel in Nordrhein-Westfalen. Das aus zwei Teilflächen bestehende Gebiet erstreckt sich südwestlich des Kernortes von Hünxe und nördlich des Hünxer Ortsteils Bruckhausen zu beiden Seiten der A 3 und der Landesstraße L 1. Südwestlich des Gebietes, das vom Stollbach durchflosse...

Wakil Bupati MempawahPetahanaH. Muhammad Pagi, S.H.I., M.M.sejak 14 April 2019Masa jabatan5 tahunDibentuk1998Pejabat pertamaJ.F. Ahok, B.A.Situs webwww.mempawahkab.go.id Berikut ini adalah daftar Wakil Bupati Mempawah dari masa ke masa. No Wakil Bupati Mulai Jabatan Akhir Jabatan Prd. Ket. Bupati 1 J.F. AhokB.A. 1998 1999 1 [1] Drs. H.Henri Usman 1999 2001 2   Drs.Cornelis KimhaM.Si. 2 Drs.Abang Rusni Usha 2001 2004   3 Drs. H.Abang Rasmansyah 2004 2009 3   Drs. H....

view tabs Userpage Talk Contribs Sandbox Todo Subpages If I have left you a message: please answer on your talk page, linking to me ({{Ping|Golem08}}), so that I will be notified. If you leave me a message: I will answer on my talk page, linking to your username, so that you will be notified. Please click here to leave me a new message. Archives 1 Sections older than 30 days may be automatically archived by Lowercase sigmabot III. The Signpost: 20 November 2023 In the media: Propaganda and p...

Men's Greco-Roman 100 kgat the Games of the OlympiadVenueMesse MünchenDates6–10 SeptemberCompetitors14 from 14 nationsMedalists Nicolae Martinescu  Romania Nikolai Yakovenko  Soviet Union Ferenc Kiss  Hungary← 19681976 → Wrestling at the1972 Summer OlympicsFreestyleGreco-Roman48 kg48 kg52 kg52 kg57 kg57 kg62 kg62 kg68 kg68 kg74 kg74 kg82 kg82 kg90 kg90 kg100 kg100 kg+100 kg+100 kgvte The Men's Greco-Roman 100 kg at the 1972 Summer Olympic...

For the 1977 film, see Sri Krishna Leela (1977 film). 1971 Indian filmShri Krishna LeelaDirected byHomi WadiaWritten byBharat VyasScreenplay byHomi WadiaStory byS. N. TripathiBased onLord KrishnaProduced byHomi WadiaStarringSachinHinaJayshree GadkarSapruCinematographyAnant WadedakarEdited byShaikh IsmailMusic byS. N. TripathiProductioncompanyBasant PicturesRelease date 15 January 1971 (1971-01-15) Running time131 minCountryIndiaLanguageHindi Shri Krishna Leela is a 1971 Hindi r...

DeveltosΔεβελτός (in Greek)The ruins of DeveltosShown within BulgariaLocationDebelt, Burgas Province, BulgariaRegionThraceCoordinates42°23′28.9″N 27°17′20.5″E / 42.391361°N 27.289028°E / 42.391361; 27.289028TypeSettlement Develtos (Greek: Δεβελτός, Δηβελτός, Δεουελτός, Δεούελτος, Διβηλτóς) or Deultum [nb 1] was an ancient city and bishopric in Thrace. It was located at the mouth of the River Sredetsk...

Miles GorrellBorn: (1955-10-16) October 16, 1955 (age 68)Edmonton, AlbertaCareer informationCFL statusNationalPosition(s)OLHeight6 ft 8 in (203 cm)Weight285 lb (129 kg)UniversityOttawaCFL Draft1978 / Round: Territorial ProtectionDrafted byCalgary StampedersCareer historyAs player1978–1982Calgary Stampeders1982Ottawa Rough Riders1982–1985Montreal Concordes1985–1991Hamilton Tiger-Cats1992–1995Winnipeg Blue Bombers1996Hamilton Tiger-Cats Career hig...

この記事は検証可能な参考文献や出典が全く示されていないか、不十分です。出典を追加して記事の信頼性向上にご協力ください。(このテンプレートの使い方)出典検索?: 全国童謡歌唱コンクール – ニュース · 書籍 · スカラー · CiNii · J-STAGE · NDL · dlib.jp · ジャパンサーチ · TWL(2023年6月) 童謡こどもの歌コンクール グラ�...

American actress (born 1990) Kristen StewartStewart at the 2023 Berlin International Film FestivalBornKristen Jaymes Stewart (1990-04-09) April 9, 1990 (age 33)Los Angeles, California, U.S.OccupationActressYears active1999–presentAwardsFull listSignature Kristen Jaymes Stewart (born April 9, 1990) is an American actress. She has received various accolades, including a British Academy Film Award and a César Award, in addition to nominations for an Academy Award and a Golden Globe ...

2010 film Outside the LawTheatrical release posterDirected byRachid BoucharebWritten byRachid BoucharebOlivier LorelleProduced byJean BréhatStarringJamel DebbouzeRoschdy ZemSami BouajilaCinematographyChristophe BeaucarneEdited byYannick KergoatMusic byArmand AmarProductioncompanyTessalit ProductionsDistributed byStudioCanal (France)Release dates 21 May 2010 (2010-05-21) (Cannes Film Festival) 22 September 2010 (2010-09-22) (France) 6 October 20...

Artikel biografi ini ditulis menyerupai resume atau daftar riwayat hidup (Curriculum Vitae). Tolong bantu perbaiki agar netral dan ensiklopedis. Gaya atau nada penulisan artikel ini tidak mengikuti gaya dan nada penulisan ensiklopedis yang diberlakukan di Wikipedia. Bantulah memperbaikinya berdasarkan panduan penulisan artikel. (Pelajari cara dan kapan saatnya untuk menghapus pesan templat ini) Aspar AswinGubernur Kalimantan Barat ke-6Masa jabatan12 Januari 1993 – 13 Januari 20...

This article is about Ontario, Canada, along the Saint-Lawrence River and Seaway. For other uses, see Lost villages. Communities submerged by the Saint Lawrence Seaway Lost Villages Museum near Long Sault Entrance to Pioneer Memorial that contains headstones from cemeteries of the Lost Villages Mounted tombstones from St. John's Cemetery, Pioneer Memorial Animation showing the change to the St. Lawrence River as a result of the Moses-Saunders Power Dam The Lost Villages were ten communities (...