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                              • ▸▸
                                • 🇬🇧 Dubnium
                                • 🇨🇳 𨧀
                                • 🇳🇱 Dubnium
                                • 🇫🇷 Dubnium
                                • 🇩🇪 Dubnium
                                • 🇮🇱 דובניום
                                • 🇮🇹 Dubnio
                                • 🇯🇵 ドブニウム
                                • 🇵🇹 Dubnium
                                • 🇷🇺 Дубний
                                • 🇪🇸 Dubnio
                                • 🇸🇪 Dubnium

                                Dubnium: the essentials

                                Dubnium atoms have 105 electrons and the shell structure is 2.8.18.32.32.11.2. The ground state electronic configuration of neutral dubnium is [Rn].5f14.6d3.7s2 (a guess based upon that of tantalum) and the term symbol of dubnium is 4F3/2 (a guess based upon guessed electronic structure).

                                Dubnium: description  

                                Dubnium is a synthetic element that is not present in the environment at all. It has no uses.

                                Dubnium: physical properties

                                More physical properties...

                                Dubnium: heat properties

                                More thermochemical properties...

                                Dubnium: atom sizes

                                More atomc size properties...

                                Dubnium: electronegativities

                                More electronegativity properties...

                                Dubnium: orbital properties

                                More orbital properties...

                                Dubnium: abundances

                                More geological data...

                                Dubnium: crystal structure

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

                                More crystallographic data...

                                Dubnium: biological data

                                网络斗地主下载Dubnium has no biological role.

                                More biological data...

                                Dubnium: uses

                                Uses...

                                Dubnium: reactions

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

                                View reactions of dubnium...

                                Dubnium: 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 dubnium where known.

                                View binary compounds...

                                Dubnium: compound properties

                                Bond strengths; lattice energies of dubnium halides, hydrides, oxides (where known); and reduction potentials where known.

                                View compound properties...

                                Dubnium: history

                                Dubnium was discovered by Workers at the Nuclear Institute at Dubna, and the University of California, Berkeley, USA. in 1967 at USSR, United States. Origin of name: the origin of the name dubnium is the Joint Nuclear Institute at Dubna", an institute heavily involved in the search for heavy elements.

                                More history...

                                Dubnium: isotopes

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

                                More isotope and NMR data...

                                Dubnium: isolation

                                Isolation: only very small amounts of of element 105, dubnium, have ever been made. The first samples were made through nuclear reactions involving fusion of an isotope of californium, 249Cf, with one of nitrogen, 14N. A second route to the same isotope via berkelium is also known

                                15N + 249Cf → 261105Db + 4 1n

                                16N + 249Bk → 261105Db + 4 1n

                                Isolation of an observable quantity of dubnium has never been achieved.

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