网络斗地主下载

  • <tr id='6b0gt'><strong id='6b0gt'></strong><small id='6b0gt'></small><button id='6b0gt'></button><li id='6b0gt'><noscript id='6b0gt'><big id='6b0gt'></big><dt id='6b0gt'></dt></noscript></li></tr><ol id='6b0gt'><option id='6b0gt'><table id='6b0gt'><blockquote id='6b0gt'><tbody id='6b0gt'></tbody></blockquote></table></option></ol><u id='6b0gt'></u><kbd id='6b0gt'><kbd id='6b0gt'></kbd></kbd>

    <code id='6b0gt'><strong id='6b0gt'></strong></code>

    <fieldset id='6b0gt'></fieldset>
          <span id='6b0gt'></span>

              <ins id='6b0gt'></ins>
              <acronym id='6b0gt'><em id='6b0gt'></em><td id='6b0gt'><div id='6b0gt'></div></td></acronym><address id='6b0gt'><big id='6b0gt'><big id='6b0gt'></big><legend id='6b0gt'></legend></big></address>

              <i id='6b0gt'><div id='6b0gt'><ins id='6b0gt'></ins></div></i>
              <i id='6b0gt'></i>
            1. <dl id='6b0gt'></dl>
              1. <small id='t15yi'></small><noframes id='t15yi'>

              2. <tfoot id='t15yi'></tfoot>

                  <legend id='t15yi'><style id='t15yi'><dir id='t15yi'><q id='t15yi'></q></dir></style></legend>
                  <i id='t15yi'><tr id='t15yi'><dt id='t15yi'><q id='t15yi'><span id='t15yi'><b id='t15yi'><form id='t15yi'><ins id='t15yi'></ins><ul id='t15yi'></ul><sub id='t15yi'></sub></form><legend id='t15yi'></legend><bdo id='t15yi'><pre id='t15yi'><center id='t15yi'></center></pre></bdo></b><th id='t15yi'></th></span></q></dt></tr></i><div id='t15yi'><tfoot id='t15yi'></tfoot><dl id='t15yi'><fieldset id='t15yi'></fieldset></dl></div>

                      <bdo id='t15yi'></bdo><ul id='t15yi'></ul>

                      1. <li id='t15yi'><abbr id='t15yi'></abbr></li>

                              <dfn id='6cbyl'><optgroup id='6cbyl'></optgroup></dfn><tfoot id='6cbyl'><bdo id='6cbyl'><div id='6cbyl'></div><i id='6cbyl'><dt id='6cbyl'></dt></i></bdo></tfoot>

                              <ul id='6cbyl'></ul>

                              • ▸▸
                                • 🇬🇧 Thorium
                                • 🇨🇳 釷
                                • 🇳🇱 Thorium
                                • 🇫🇷 Thorium
                                • 🇩🇪 Thorium
                                • 🇮🇱 תוריום
                                • 🇮🇹 Torio
                                • 🇯🇵 トリウム
                                • 🇵🇹 Tório
                                • 🇷🇺 Торий
                                • 🇪🇸 Torio
                                • 🇸🇪 Torium

                                Thorium: the essentials

                                Thorium atoms have 90 electrons and the shell structure is 2.8.18.32.18.10.2. The ground state electronic configuration of neutral thorium is [Rn].6d2.7s2 and the term symbol of thorium is 3F2.

                                Thorium: description  

                                Thorium is a source of nuclear power. There is probably more untapped energy available for use from thorium in the minerals of the earth's crust than from combined uranium and fossil fuel sources. Much of the internal heat the earth has been attributed to thorium and uranium.

                                网络斗地主下载When pure, thorium is a silvery white metal which is air-stable and retains its lustre for several months. When contaminated with the oxide, thorium slowly tarnishes in air, becoming grey and finally black. Thorium oxide has a melting point of 3300°C, the highest of all oxides. Only a few elements, such as tungsten, and a few compounds, such as tantalum carbide, have higher melting points.

                                Thorium is slowly attacked by water, but does not dissolve readily in most common acids, except hydrochloric. Powdered thorium metal is often pyrophoric and should be carefully handled.When heated in air, thorium turnings ignite and burn brilliantly with a white light.

                                网络斗地主下载Thorium is named for Thor, the Scandinavian god of war. It is found in thorite and thorianite in New England (USA) and other sites.

                                thorium
                                Image adapted with permission from 's (U. North Texas, USA) Walking Tour of the elements CD.

                                Thorium: physical properties

                                More physical properties...

                                Thorium: heat properties

                                More thermochemical properties...

                                Thorium: atom sizes

                                More atomc size properties...

                                Thorium: electronegativities

                                More electronegativity properties...

                                Thorium: orbital properties

                                More orbital properties...

                                Thorium: abundances

                                More geological data...

                                Thorium: crystal structure

                                Th crystal structure
                                The solid state structure of thorium is: bcc (body-centred cubic).

                                More crystallographic data...

                                Thorium: biological data

                                Thorium has no biological role.

                                More biological data...

                                Thorium: uses

                                Uses...

                                Thorium: reactions

                                网络斗地主下载 Reactions of thorium as the element with air, water, halogens, acids, and bases where known.

                                View reactions of thorium...

                                Thorium: binary compounds

                                网络斗地主下载 Binary compounds with halogens (known as halides), oxygen (known as oxides), hydrogen (known as hydrides), and other compounds of thorium where known.

                                View binary compounds...

                                Thorium: compound properties

                                网络斗地主下载 Bond strengths; lattice energies of thorium halides, hydrides, oxides (where known); and reduction potentials where known.

                                View compound properties...

                                Thorium: history

                                Thorium was discovered by Jöns Berzelius in 1829 at Sweden. Origin of name: named after "Thor", the mythological Scandinavian god of war.

                                More history...

                                Thorium: isotopes

                                Isotope abundances of thorium
                                Isotope abundances of thorium with the most intense signal set to 100%.

                                More isotope and NMR data...

                                Thorium: isolation

                                Isolation网络斗地主下载: coming soon!

                                在线赌博最新 老虎机大全---网络斗地主下载_欢迎您 疯狂牛牛安卓---网络斗地主下载_欢迎您 娱乐正规网址-Welcome 乐酷棋牌---网络斗地主下载_欢迎您