Template:Infobox technetium

Technetium
Mo ← ibox Mo	Tc  () infobox () isobox ()	→ Ru ibox Ru

File:Mergefrom.svgISOBOX reuse · temporarily taskforce (talk) · Current page: IB-live (technetium) · ()
| Article: Technetium   · h | Isotopes of technetium   · h | Template: {{Infobox technetium}}   · h | {{Infobox technetium isotopes}}   · h |

Useful links: cat:Task list (124) · cat:ref & cmt (0) · CAT:DUPARG · RELC Infobox · RELC Isobox
random todo (ca. 1⁄36): {{[[Template:Infobox |Infobox ]]}}, random all (1⁄124): P: {{Infobox phosphorus}} · (meta: IB <element> · Isobox <element>)

()

Periodic table (Infobox links only. More element links: Index PT)
	1	2															3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18
	ibox H 1																															ibox He 2
	ibox Li 3	ibox Be 4																									ibox B 5	ibox C 6	ibox N 7	ibox O 8	ibox F 9	ibox Ne 10
	ibox Na 11	ibox Mg 12																									ibox Al 13	ibox Si 14	ibox P 15	ibox S 16	ibox Cl 17	ibox Ar 18
	ibox K 19	ibox Ca 20															ibox Sc 21	ibox Ti 22	ibox V 23	ibox Cr 24	ibox Mn 25	ibox Fe 26	ibox Co 27	ibox Ni 28	ibox Cu 29	ibox Zn 30	ibox Ga 31	ibox Ge 32	ibox As 33	ibox Se 34	ibox Br 35	ibox Kr 36
	ibox Rb 37	ibox Sr 38															ibox Y 39	ibox Zr 40	ibox Nb 41	ibox Mo 42	ibox Tc 43	ibox Ru 44	ibox Rh 45	ibox Pd 46	ibox Ag 47	ibox Cd 48	ibox In 49	ibox Sn 50	ibox Sb 51	ibox Te 52	ibox I 53	ibox Xe 54
	ibox Cs 55	ibox Ba 56	ibox La 57	ibox Ce 58	ibox Pr 59	ibox Nd 60	ibox Pm 61	ibox Sm 62	ibox Eu 63	ibox Gd 64	ibox Tb 65	ibox Dy 66	ibox Ho 67	ibox Er 68	ibox Tm 69	ibox Yb 70	ibox Lu 71	ibox Hf 72	ibox Ta 73	ibox W 74	ibox Re 75	ibox Os 76	ibox Ir 77	ibox Pt 78	ibox Au 79	ibox Hg 80	ibox Tl 81	ibox Pb 82	ibox Bi 83	ibox Po 84	ibox At 85	ibox Rn 86
	ibox Fr 87	ibox Ra 88	ibox Ac 89	ibox Th 90	ibox Pa 91	ibox U 92	ibox Np 93	ibox Pu 94	ibox Am 95	ibox Cm 96	ibox Bk 97	ibox Cf 98	ibox Es 99	ibox Fm 100	ibox Md 101	ibox No 102	ibox Lr 103	ibox Rf 104	ibox Db 105	ibox Sg 106	ibox Bh 107	ibox Hs 108	ibox Mt 109	ibox Ds 110	ibox Rg 111	ibox Cn 112	ibox Nh 113	ibox Fl 114	ibox Mc 115	ibox Lv 116	ibox Ts 117	ibox Og 118
	ibox Uue 119	ibox Ubn 120	ibox Ubu 121	ibox Ubb 122		ibox Ubq 124		ibox Ubh 126

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• check= File:Symbol question.svg? to check
• checknote1= MainIsobox updates from NUBASE2020, multiple significant dm changes; looks ok now.

ISOBOX reuse taskforce — Helptext

What is this? (this text box: ) Per December 2022, a WP:ELEMENTS taskforce is working to re-use isotopes data. Isotopes present in Isobox <element> are reused in Infobox <element> (read & shown, automatically and real-time). This task is to check whether the reused data indeed has all abandoned data. The lefthand table is the Isobox(Tc). This data is live, and is shown in both "Isotopes of technetium", and in Infobox (Tc) → "Technetium". File:Green check.svgY The righthand (middle of page) table is the old "Main isotopes of element" data from Infobox (Tc), which does not show any more and will be deleted. File:Red x.svgN Todo A. Please compare & check the two tables and sources. Update the lefthand Isobox as needed. When the situation is unclear or to be researched, leave a comment in |checknote1=. When OK, add the following to this Infobox page (edit), inside the {{infobox ..}} template code: {{Infobox uranium |check = ok |checknote1= Not sure about xyz, someone pls take a look B. Old Infobox parameters |isotopes comment=, |isobox ref= to remove. Deprecated parameters (done) Tracked in ref & cmt category (0), as blacklisted parameters. 1. Manually copy/paste from Infobox to Isobox: |isotopes ref=→|isobox ref= |isotopes comment=→|isotopes comment= 2.These parameters may then be deleted from the Infobox (and so disappear from the category). For Z>=E119, there is new parameter |theoretical isotopes comment=. The table rows ({{isotope .. / .. decay2|mn= ..}} &tc.) now have new |ref=, one per isotope. File:Yes check.svg Done (Cf, F, Pb). For Z>=E119, there is new parameter |theoretical isotopes comment=. C. Align the named references. TL;DR: Named references must be checked for exact spelling (c/p). Red messages in article References section. References can be named, defined and reused over four pages: Article, Isotopes of <element>, {{Infobox <element>}}, {{Infobox <element> isotopes}}. In the wikicode, they appear as <ref name="Hofmann2016">..</ref>, and reused as <ref name="Hofmann2016" />. Those ref name (reused) and ref content (when redefined) must be exactly the same (true copy/paste). Misspellings appear as red error messages in the references section of the two live articles. Resolving: these messages are to be removed by checking and copy/pasting the <syntaxhighlight lang="text" class="" id="" style="" inline="1">ref name=</syntaxhighlight> wikicodes. Sometimes it is easier to remove a reference (already abandoned) from the Infobox completely, after checking it is in the Isobox allright. Examples demo: IB(U)/s · IB(119)/s · IB(121)/s Notes |checknote1=My comments is a mini-talk, free to use and expand, to communicate about this element. |checknote2= same. |check=ok will re-sort this Infobox <element> in the task category from <syntaxhighlight lang="text" class="" id="" style="" inline="1">*</syntaxhighlight> (not ok) to <syntaxhighlight lang="text" class="" id="" style="" inline="1">O</syntaxhighlight> (ok). Text can be different: |check=todo: foobar, will read as "not ok yet". Please do not remove the isotopes data from the Infobox, and do not edit the meta-templates. OTOH, |isotopes ref=, |isotopes comment= and abandoned references may be deleted from Infobox <element> (see B, C). Other data can be edited as usual. Standard atomic weight data is not affected (to be ignored). When all Infoboxes are OK and stable, this Isobox reuse task will be ended, data removed.

ISOBOX technetium File:Green check.svgY (child; reused) live
Iso­tope Decay abun­dance half-life (t1/2) mode pro­duct 95mTc syn γ – IT 95Tc 96Tc syn ε 96Mo γ – 97Tc syn ε 97Mo 97mTc syn IT 97Tc ε 98Tc syn β− 98Ru b+ – 99Tc trace β− 99Ru 99mTc syn IT 99Tc β− –

IB technetium File:Red x.svgN (old data, hidden) live
Main isotopes of technetium
Abun­dance Half-life (t1/2) Decay mode Pro­duct 95mTc syn 61 d ε 95Mo γ – IT 95Tc 96Tc syn 4.3 d ε 96Mo γ – 97Tc syn 4.21×106 y ε 97Mo 97mTc syn 91 d IT 97Tc 98Tc syn 4.2×106 y β− 98Ru γ – 99Tc trace 2.111×105 y β− 99Ru 99mTc syn 6.01 h IT 99Tc γ –

Technetium, ₄₃Tc

File:Technetium-sample-cropped.jpg
Technetium
Pronunciation	/tɛkˈniːʃ(i)əm/ ​(tek-NEE-sh(ee-)əm)
Appearance	shiny gray metal
Mass number	[97]
Technetium in the periodic table
Hydrogen Helium Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium Indium Tin Antimony Tellurium Iodine Xenon Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium Darmstadtium Roentgenium Copernicium Nihonium Flerovium Moscovium Livermorium Tennessine Oganesson Mn ↑ Tc ↓ Re molybdenum ← technetium → ruthenium
Atomic number (Z)	43
Block	[[Block (periodic table)#|]]
Electron configuration	[Kr] 4d5 5s2
Electrons per shell	2, 8, 18, 13, 2
Physical properties
Phase at STP	solid
Melting point	2430 K ​(2157 °C, ​3915 °F)
Boiling point	4538 K ​(4265 °C, ​7709 °F)
Density (near r.t.)	11 g/cm3
Heat of fusion	33.29 kJ/mol
Heat of	585.2 kJ/mol
Molar heat capacity	24.27 J/(mol·K)
pressure (extrapolated) P (Pa) 1 10 100 1 k 10 k 100 k at T (K) 2727 2998 3324 3726 4234 4894
Atomic properties
Oxidation states	−3, −1, 0, +1, +2, +3, +4, +5, +6, +7 (a strongly acidic oxide)
Electronegativity	Pauling scale: 1.9
energies	1st: 702 kJ/mol 2nd: 1470 kJ/mol 3rd: 2850 kJ/mol
Atomic radius	empirical: 136 pm
Covalent radius	147±7 pm
File:Technetium spectrum visible.png Spectral lines of technetium
Other properties
Natural occurrence	from decay
Crystal structure	​hexagonal close-packed (hcp) File:Hexagonal close packed.svg
Speed of sound thin rod	16,200 m/s (at 20 °C)
Thermal expansion	7.1 µm/(m⋅K) (at r.t.)
Thermal conductivity	50.6 W/(m⋅K)
Electrical resistivity	200 nΩ⋅m (at 20 °C)
Magnetic ordering	Paramagnetic
Molar magnetic susceptibility	cm3/mol (298 K)
CAS Number	7440-26-8
History
Prediction	Dmitri Mendeleev (1871)
Discovery and first isolation	Emilio Segrè and Carlo Perrier (1937)
Main isotopes of technetium
Iso­tope Decay abun­dance half-life (t1/2) mode pro­duct 95mTc syn γ – IT 95Tc 96Tc syn ε 96Mo γ – 97Tc syn ε 97Mo 97mTc syn IT 97Tc ε 98Tc syn β− 98Ru b+ – 99Tc trace β− 99Ru 99mTc syn IT 99Tc β− –

Technetium
Mo ← ibox Mo	Tc  () infobox () isobox ()	→ Ru ibox Ru
cat:Tc (0) cat:Tc-isotopes (0) Commons Commons Wikidata Wikidata:Q1054 Wiktionary Wiktionary
indexes by PT (page)

Data sets read by {{Infobox element}}
Name and identifiers
Top image (caption, alt)
Pronunciation
Allotropes (demo)
Group (demo)
Period (demo)
Block (demo)
Standard atomic weight
most stable isotope
Natural occurrence
Phase at STP
Oxidation states
Spectral lines image
Electron configuration (cmt, ref)
Wikidata *
Symbol etymology (11 non-trivial)
* Not used in {{Infobox element}} (2023-01-01) See also {{Index of data sets}} · Category:data sets (0)

References

These references will appear in the article, but this list appears only on this page.