CINXE.COM

<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0">  <script async src="https://www.googletagmanager.com/gtag/js?id=G-ZK1E8XKBLT"></script> <script> window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'G-ZK1E8XKBLT'); </script>  <title>WebElements Periodic Table » Technetium » reactions of elements</title> <meta name="Description" content="This WebElements periodic table page contains reactions of elements for the element technetium"> <meta name="keywords" content="technetium, reactions of elements, air, water, halogens, acids, bases, alkali, chemistry, periodic table, periodic chart, periodic system, chemical elements, chemical, webelements, web-elements, Sheffield, science, element, elements, metal, gas, atoms"> <link rel="stylesheet" href="../_newlands/pure/pure-min.css" type="text/css"> <link rel="stylesheet" href="../_newlands/pure/grids-responsive-min.css" type="text/css"> <link rel="stylesheet" href="../_newlands/pure-layout-side-menu/css/layouts/side-menu.css" type="text/css"> <link rel="stylesheet" href="../_newlands/css/webelements.css?parameter=1"> <meta name="author" content="Prof Mark Winter, University of Sheffield"> <meta name="copyright" content="Copyright 2024 Prof Mark Winter"> <link rel="index" href="./"> <link rel="shortcut icon" href="../favicon.png"> </head> <body> <div id="layout">  <a href="#menu" id="menuLink" class="menu-link">  <span></span> </a>  <div id="menu"> <div class="pure-menu"> <ul class="pure-menu-list"> <li class="pure-menu-item logo"><a href="../" class="pure-menu-link"><img height="30" src="../_media/icons/logo_60.png" alt="WebElements logo" /></a></li> <li class="pure-menu-item v"> <div id="NavigationPanel"> <table style="nav_panel"> <tr> <th class="navpanel-d"><a title="chromium" href="../chromium/chemistry.html">Cr</a></th> <th class="navpanel-d"><a title="manganese" href="../manganese/chemistry.html">Mn</a></th> <th class="navpanel-d"><a title="iron" href="../iron/chemistry.html">Fe</a></th> </tr> <tr> <th class="navpanel-d"><a title="molybdenum" href="../molybdenum/chemistry.html">Mo</a></th> <th class="navpanel-d">Tc</th> <th class="navpanel-d"><a title="ruthenium" href="../ruthenium/chemistry.html">Ru</a></th> </tr> <tr> <th class="navpanel-d"><a title="tungsten" href="../tungsten/chemistry.html">W</a></th> <th class="navpanel-d"><a title="rhenium" href="../rhenium/chemistry.html">Re</a></th> <th class="navpanel-d"><a title="osmium" href="../osmium/chemistry.html">Os</a></th> </tr> </table> </div> </li>  <li class="pure-menu-item v"> <div class="element_select_centre"><a class="imagelink" title="Switch to a different element from here" href="../index.html"><img class="" src="../_media/locs/Tc-loc.png" alt="Technetium location" /></a> </div> </li>  <li class="pure-menu-item f"><a class="pure-menu-link f" href="../actinium/chemistry.html">Actinium ☢</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../aluminium/chemistry.html">Aluminium</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../aluminium/chemistry.html">Aluminum</a></li> <li class="pure-menu-item f"><a class="pure-menu-link f" href="../americium/chemistry.html">Americium ☢</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../antimony/chemistry.html">Antimony</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../argon/chemistry.html">Argon</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../arsenic/chemistry.html">Arsenic</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../astatine/chemistry.html">Astatine ☢</a></li> <li class="pure-menu-item s"><a class="pure-menu-link s" href="../barium/chemistry.html">Barium</a></li> <li class="pure-menu-item f"><a class="pure-menu-link f" href="../berkelium/chemistry.html">Berkelium ☢</a></li> <li class="pure-menu-item s"><a class="pure-menu-link s" href="../beryllium/chemistry.html">Beryllium</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../bismuth/chemistry.html">Bismuth</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../bohrium/chemistry.html">Bohrium ☢</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../boron/chemistry.html">Boron</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../bromine/chemistry.html">Bromine</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../cadmium/chemistry.html">Cadmium</a></li> <li class="pure-menu-item s"><a class="pure-menu-link s" href="../caesium/chemistry.html">Caesium</a></li> <li class="pure-menu-item s"><a class="pure-menu-link s" href="../calcium/chemistry.html">Calcium</a></li> <li class="pure-menu-item f"><a class="pure-menu-link f" href="../californium/chemistry.html">Californium ☢</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../carbon/chemistry.html">Carbon</a></li> <li class="pure-menu-item f"><a class="pure-menu-link f" href="../cerium/chemistry.html">Cerium</a></li> <li class="pure-menu-item s"><a class="pure-menu-link s" href="../caesium/chemistry.html">Cesium</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../chlorine/chemistry.html">Chlorine</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../chromium/chemistry.html">Chromium</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../cobalt/chemistry.html">Cobalt</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../copernicium/chemistry.html">Copernicium ☢</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../copper/chemistry.html">Copper</a></li> <li class="pure-menu-item f"><a class="pure-menu-link f" href="../curium/chemistry.html">Curium ☢</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../darmstadtium/chemistry.html">Darmstadtium ☢</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../dubnium/chemistry.html">Dubnium ☢</a></li> <li class="pure-menu-item f"><a class="pure-menu-link f" href="../dysprosium/chemistry.html">Dysprosium</a></li> <li class="pure-menu-item f"><a class="pure-menu-link f" href="../einsteinium/chemistry.html">Einsteinium ☢</a></li> <li class="pure-menu-item f"><a class="pure-menu-link f" href="../erbium/chemistry.html">Erbium</a></li> <li class="pure-menu-item f"><a class="pure-menu-link f" href="../europium/chemistry.html">Europium</a></li> <li class="pure-menu-item f"><a class="pure-menu-link f" href="../fermium/chemistry.html">Fermium ☢</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../flerovium/chemistry.html">Flerovium ☢</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../fluorine/chemistry.html">Fluorine</a></li> <li class="pure-menu-item s"><a class="pure-menu-link s" href="../francium/chemistry.html">Francium</a></li> <li class="pure-menu-item f"><a class="pure-menu-link f" href="../gadolinium/chemistry.html">Gadolinium</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../gallium/chemistry.html">Gallium</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../germanium/chemistry.html">Germanium</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../gold/chemistry.html">Gold</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../hafnium/chemistry.html">Hafnium</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../hassium/chemistry.html">Hassium ☢</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../helium/chemistry.html">Helium</a></li> <li class="pure-menu-item f"><a class="pure-menu-link f" href="../holmium/chemistry.html">Holmium</a></li> <li class="pure-menu-item s"><a class="pure-menu-link s" href="../hydrogen/chemistry.html">Hydrogen</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../indium/chemistry.html">Indium</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../iodine/chemistry.html">Iodine</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../iridium/chemistry.html">Iridium</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../iron/chemistry.html">Iron</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../krypton/chemistry.html">Krypton</a></li> <li class="pure-menu-item f"><a class="pure-menu-link f" href="../lanthanum/chemistry.html">Lanthanum</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../lawrencium/chemistry.html">Lawrencium ☢</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../lead/chemistry.html">Lead</a></li> <li class="pure-menu-item s"><a class="pure-menu-link s" href="../lithium/chemistry.html">Lithium</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../livermorium/chemistry.html">Livermorium ☢</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../lutetium/chemistry.html">Lutetium</a></li> <li class="pure-menu-item s"><a class="pure-menu-link s" href="../magnesium/chemistry.html">Magnesium</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../manganese/chemistry.html">Manganese</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../meitnerium/chemistry.html">Meitnerium ☢</a></li> <li class="pure-menu-item f"><a class="pure-menu-link f" href="../mendelevium/chemistry.html">Mendelevium ☢</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../mercury/chemistry.html">Mercury</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../molybdenum/chemistry.html">Molybdenum</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../moscovium/chemistry.html">Moscovium ☢</a></li> <li class="pure-menu-item f"><a class="pure-menu-link f" href="../neodymium/chemistry.html">Neodymium</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../neon/chemistry.html">Neon</a></li> <li class="pure-menu-item f"><a class="pure-menu-link f" href="../neptunium/chemistry.html">Neptunium</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../nickel/chemistry.html">Nickel</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../nihonium/chemistry.html">Nihonium ☢</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../niobium/chemistry.html">Niobium</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../nitrogen/chemistry.html">Nitrogen</a></li> <li class="pure-menu-item f"><a class="pure-menu-link f" href="../nobelium/chemistry.html">Nobelium</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../oganesson/chemistry.html">Oganesson ☢</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../osmium/chemistry.html">Osmium</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../oxygen/chemistry.html">Oxygen</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../palladium/chemistry.html">Palladium</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../phosphorus/chemistry.html">Phosphorus</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../platinum/chemistry.html">Platinum</a></li> <li class="pure-menu-item f"><a class="pure-menu-link f" href="../plutonium/chemistry.html">Plutonium ☢</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../polonium/chemistry.html">Polonium</a></li> <li class="pure-menu-item s"><a class="pure-menu-link s" href="../potassium/chemistry.html">Potassium</a></li> <li class="pure-menu-item f"><a class="pure-menu-link f" href="../praseodymium/chemistry.html">Praseodymium</a></li> <li class="pure-menu-item f"><a class="pure-menu-link f" href="../promethium/chemistry.html">Promethium ☢</a></li> <li class="pure-menu-item f"><a class="pure-menu-link f" href="../protactinium/chemistry.html">Protactinium ☢</a></li> <li class="pure-menu-item s"><a class="pure-menu-link s" href="../radium/chemistry.html">Radium ☢</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../radon/chemistry.html">Radon ☢</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../rhenium/chemistry.html">Rhenium</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../rhodium/chemistry.html">Rhodium</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../roentgenium/chemistry.html">Roentgenium ☢</a></li> <li class="pure-menu-item s"><a class="pure-menu-link s" href="../rubidium/chemistry.html">Rubidium</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../ruthenium/chemistry.html">Ruthenium</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../rutherfordium/chemistry.html">Rutherfordium ☢</a></li> <li class="pure-menu-item f"><a class="pure-menu-link f" href="../samarium/chemistry.html">Samarium</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../scandium/chemistry.html">Scandium</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../seaborgium/chemistry.html">Seaborgium ☢</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../selenium/chemistry.html">Selenium</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../silicon/chemistry.html">Silicon</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../silver/chemistry.html">Silver</a></li> <li class="pure-menu-item s"><a class="pure-menu-link s" href="../sodium/chemistry.html">Sodium</a></li> <li class="pure-menu-item s"><a class="pure-menu-link s" href="../strontium/chemistry.html">Strontium</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../sulfur/chemistry.html">Sulfur</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../sulfur/chemistry.html">Sulphur</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../tantalum/chemistry.html">Tantalum</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../technetium/chemistry.html">Technetium</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../tellurium/chemistry.html">Tellurium</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../tennessine/chemistry.html">Tennessine ☢</a></li> <li class="pure-menu-item f"><a class="pure-menu-link f" href="../terbium/chemistry.html">Terbium</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../thallium/chemistry.html">Thallium</a></li> <li class="pure-menu-item f"><a class="pure-menu-link f" href="../thorium/chemistry.html">Thorium ☢</a></li> <li class="pure-menu-item f"><a class="pure-menu-link f" href="../thulium/chemistry.html">Thulium</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../tin/chemistry.html">Tin</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../titanium/chemistry.html">Titanium</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../tungsten/chemistry.html">Tungsten</a></li> <li class="pure-menu-item f"><a class="pure-menu-link f" href="../uranium/chemistry.html">Uranium ☢</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../vanadium/chemistry.html">Vanadium</a></li> <li class="pure-menu-item p"><a class="pure-menu-link p" href="../xenon/chemistry.html">Xenon</a></li> <li class="pure-menu-item f"><a class="pure-menu-link f" href="../ytterbium/chemistry.html">Ytterbium</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../yttrium/chemistry.html">Yttrium</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../zinc/chemistry.html">Zinc</a></li> <li class="pure-menu-item d"><a class="pure-menu-link d" href="../zirconium/chemistry.html">Zirconium</a></li> </ul> </div> </div>  <div class="pure-g"> <div class="pure-u-1"> <div class="pure-menu pure-menu-open pure-menu-horizontal centre" role="navigation" style="background: #000 url(../_media/elements/discharge/Tc.png) repeat-y center; background-size:contain;"> <span><a class="pure-menu-heading" href="https://winter.group.shef.ac.uk/webelements/"><img height="30" src="../_media/icons/logo_60.png" alt="WebElements logo"></a> <a class="white" href="./">Technetium - <sub>43</sub>Tc</a>  <audio id="myAudio_f"> <source src="../_media/elements/snds_f/Tc.mp3" type="audio/mpeg">Your user agent does not support the HTML5 Audio element. </audio> <button class="pure-button d_button" style=" display: inline;" type="button" onclick="audf_play_pause()"> 🔊  </button> <script> function audf_play_pause() { var myAudiof = document.getElementById("myAudio_f"); if (myAudiof.paused) { myAudiof.play(); } else { myAudiof.pause(); }} </script></span> </div> </div> </div> <div id="main">  <div class="pure-u-1 pure-u-sm-1-1"> <div class="pure-menu pure-menu-horizontal pure-menu-scrollable"> <a href="#" class="pure-menu-link pure-menu-heading">▸▸</a> <ul class="pure-menu-list"> <li class="pure-menu-item">🇬🇧 Technetium</li> <li class="pure-menu-item">🇺🇦 Технецій</li> <li class="pure-menu-item">🇨🇳 鎝</li> <li class="pure-menu-item">🇳🇱 Technetium</li> <li class="pure-menu-item">🇫🇷 Technétium</li> <li class="pure-menu-item">🇩🇪 Technetium</li> <li class="pure-menu-item">🇮🇱 טכנטיום</li> <li class="pure-menu-item">🇮🇹 Tecneto</li> <li class="pure-menu-item">🇯🇵 テクネチウム</li> <li class="pure-menu-item">🇵🇹 Tecnécio</li> <li class="pure-menu-item">🇪🇸 Tecnecio</li> <li class="pure-menu-item">🇸🇪 Teknetium</li> <li class="pure-menu-item">🇷🇺 Технеций</li> </ul> </div> </div> <div class="pure-g"> <div class="pure-u-1 pure-u-sm-1-1"> <div class="google_navbar_positioning"> <form action="https://www.google.com" id="cse-search-box"> <div> <input type="hidden" name="cx" value="partner-pub-9334432533380510:6223510783"> <input type="hidden" name="ie" value="UTF-8"> <input type="text" name="q" size="28"> <input type="submit" name="sa" value="Search"> </div> </form> <script> </script> </div> </div> </div> <main> <div class="pure-g"> <div class="pure-u-1 pure-u-sm-1-1"> <h1 class="d">Technetium - <sub><small>43</small></sub>Tc: reactions of elements</h1> <div class="pure-menu pure-menu-horizontal pure-menu-scrollable"> <ul class="pure-menu-list z_menu"> <li class="pure-menu-item d"><a href="../technetium/" class="pure-menu-link">▸▸ Tc Essentials</a></li> <li class="pure-menu-item d"><a class="pure-menu-link" href="../technetium/physics.html">Physical properties</a></li> <li class="pure-menu-item d"><a class="pure-menu-link" href="../technetium/atoms.html">Electron shell data</a></li> <li class="pure-menu-item d"><a class="pure-menu-link" href="../technetium/atom_sizes.html">Atom sizes</a></li> <li class="pure-menu-item d"><a class="pure-menu-link" href="../technetium/electronegativity.html">Electronegativity</a></li> <li class="pure-menu-item d"><a class="pure-menu-link" href="../technetium/isotopes.html" >Isotopes and NMR</a></li> <li class="pure-menu-item d"><a class="pure-menu-link" href="../technetium/crystal_structure.html">Crystal structure</a></li> <li class="pure-menu-item d"><a class="pure-menu-link" href="../technetium/thermochemistry.html">Thermochemistry</a></li> <li class="pure-menu-item d"><a class="pure-menu-link" href="../technetium/history.html">History</a></li> <li class="pure-menu-item d"><a class="pure-menu-link" href="../technetium/uses.html">Uses</a></li> <li class="pure-menu-item d"><a class="pure-menu-link" href="../technetium/geology.html">Geology</a></li> <li class="pure-menu-item d"><a class="pure-menu-link" href="../technetium/biology.html">Biology</a></li> <li class="pure-menu-item d"><a class="pure-menu-link" href="../technetium/compounds.html">Binary compounds</a></li> <li class="pure-menu-item d"><a class="pure-menu-link" href="../technetium/compound_properties.html" >Compound properties</a></li> <li class="pure-menu-item d"><a class="pure-menu-link" href="../technetium/chemistry.html">Element reactions</a></li> <li class="pure-menu-item d"><a class="pure-menu-link" href="../technetium/contents.html">List all Tc properties</a></li> </ul> </div> </div> </div> <h2 class="d">Reaction of technetium with air</h2> <p class="p_first">Technetium is less reactive to air than manganese, which is immediately above technetium in the periodic table. It is about as reactive as rhenium metal, which is immediately below technetium in the periodic table. As such it tarnishes only very slowly in moist air. In practice, technetium is often supplied as a powder or as a sponge, and in this form it is much more reactive. When heated with oxygen the result is technetium (VII) oxide, (techentium heptoxide, Tc<sub>2</sub>O<sub>7</sub>).</p> <p>4Tc(s) + 7O<sub>2</sub>(g) → 2Tc<sub>2</sub>O<sub>7</sub>(s)</p> <h2 class="d">Reaction of technetium with water</h2> <p class="p_first">Technetium does not react with water under normal conditions.</p> <h2 class="d">Reaction of technetium with the halogens</h2> <p class="p_first">In similar fashion to rhenium, immediately below technetium in the periodic table, technetium is often supplied as a powder or as a sponge, and in this form it is quite more reactive. When heated with fluorine the result is a mixture of technetium (VI) fluoride, (technetium hexafluoride, TcF<sub>6</sub>) and technetium (VII) fluoride, (technetium heptafluoride, TcF<sub>7</sub>).</p> <p class="equation">Tc(s) + 3F<sub>2</sub>(g) → TcF<sub>6</sub>(s)</p> <p class="equation">2Tc(s) + 7F<sub>2</sub>(g) → 2TcF<sub>7</sub>(s)</p> <p>Technetium metal does dissolve in warm bromine water.</p> <h2 class="d">Reaction of technetium with acids</h2> <p class="p_first">In similar fashion to rhenium, immediately below technetium in the periodic table, technetium is insoluble in hydrochloric acid (HCl) and hydrofluoric acid (HF). It does dissolve in nitric acid, HNO<sub>3</sub>, or concentrated sulphuric acid, H<sub>2</sub>SO<sub>4</sub>, both of which are oxidizing, to form solutions of pertechnetic acid, HTcO<sub>4</sub>. In this form, the technetium is in the formal +7 oxidation state.</p> <h2 class="d">Reaction of technetium with bases</h2> </main> <div id="footer"> <footer> <div class="footer"> <div class="pure-g"> <div class="pure-u-1-2 pure-u-sm-1-2 pure-u-lg-1-4 pure-menu custom-restricted-width"> <ul class="pure-menu-list"> <li class="pure-menu-heading footer_h">Key properties</li> <li class="pure-menu-item"><a class="pure-menu-link" href="https://www.webelements.com/periodicity/eneg_pauling/">Electronegativity </a></li> <li class="pure-menu-item"><a class="pure-menu-link" href="https://www.webelements.com/periodicity/melting_point/">Melting point</a></li> <li class="pure-menu-item"><a class="pure-menu-link" href="https://www.webelements.com/periodicity/density/">Density </a></li> <li class="pure-menu-item"><a class="pure-menu-link" href="https://www.webelements.com/periodicity/molar_volume/">Molar volume</a></li> <li class="pure-menu-item"><a class="pure-menu-link" href="https://www.webelements.com/periodicity/ionis_energy_1/">Ionization energy (1st)</a></li> <li class="pure-menu-item"><a class="pure-menu-link" href="https://www.webelements.com/periodicity/covalent_radius/">Covalent radius</a></li> <li class="pure-menu-item"><a class="pure-menu-link" href="https://www.webelements.com/periodicity/metallic_radius/">Metallic radius</a></li> <li class="pure-menu-item"><a class="pure-menu-link" href="https://www.webelements.com/periodicity/abund_crust/">Abundance: earth's crust</a></li> </ul> </div> <div class="pure-u-1-2 pure-u-sm-1-2 pure-u-lg-1-4 pure-menu custom-restricted-width"> <ul class="pure-menu-list"> <li class="pure-menu-heading footer_h">Shop</li> <li class="pure-menu-item">Sorry, shop closed</li> </ul> </div> <div class="pure-u-1-2 pure-u-sm-1-2 pure-u-lg-1-4 pure-menu custom-restricted-width"> <ul class="pure-menu-list"> <li class="pure-menu-heading footer_h">Social</li> <li class="pure-menu-item"><a class="pure-menu-link" href="https://www.facebook.com/webelements.periodic.table">Facebook</a></li> <li class="pure-menu-item"><a class="pure-menu-link" href="https://twitter.com/periodic_table">Twitter</a></li> <li class="pure-menu-item"><a class="pure-menu-link" href="https://www.pinterest.com/periodictable/">Pinterest</a></li> </ul> </div> <div class="pure-u-1-2 pure-u-sm-1-2 pure-u-lg-1-4 pure-menu custom-restricted-width"> <ul class="pure-menu-list"> <li class="pure-menu-heading footer_h">Administration</li> <li class="pure-menu-item"><a class="pure-menu-link" href="https://www.webelements.com/nexus/your-privacy/" title="Your privacy">Privacy</a></li> <li class="pure-menu-item"><a class="pure-menu-link" href="https://www.webelements.com/nexus/about-webelements/" title="About WebElements">About</a></li> <li class="pure-menu-item"><a class="pure-menu-link" href="https://www.webelements.com/nexus/webelements-and-copyright/" title="Copyright information about WebElements">Copyright</a></li> <li class="pure-menu-item"><a class="pure-menu-link" href="https://www.webelements.com/nexus/acknowledgements/" title="Acknowledgements">Thanks...</a></li> </ul> </div> </div> </div> <address> <p> <a href="https://www.webelements.com/"><img class="logo_m" src="../_media/icons/logo_60.png" alt="WebElements home" /></a><br /> <strong>WebElements:</strong> THE periodic table on the WWW [<a href="https://www.webelements.com/">www.webelements.com</a>]<br /> <a href="https://www.webelements.com/nexus/webelements-and-copyright/">Copyright </a> 1993-2024 <a href="https://winter.group.shef.ac.uk/">Mark Winter</a> [ <a href="https://www.sheffield.ac.uk/chemistry/">The University of Sheffield </a> and WebElements Ltd, UK]. All rights reserved.</p> <p>You can reference the WebElements periodic table as follows:<br />"WebElements, https://www.webelements.com, accessed November 2024."</p> </address> </footer> </div> </div> </div> <script src="../_newlands/javascript/menus.js"></script> <script src="../_newlands/pure-layout-side-menu/js/ui.js"></script> </body> </html>