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                        ▸▸
                        • 🇬🇧 Roentgenium
                        • 🇨🇳 錀
                        • 🇳🇱 Roentgenium
                        • 🇫🇷 Roentgenium
                        • 🇩🇪 Roentgenium
                        • 🇮🇱 רנטגניום
                        • 🇮🇹 Roentgenio
                        • 🇯🇵 レントゲニウム
                        • 🇵🇹 Roentgenio
                        • 🇷🇺 Рентгений
                        • 🇪🇸 Roentgenio
                        • 🇸🇪 Roentgenium

                        Roentgenium: the essentials

                        Roentgenium atoms have 111 electrons and the shell structure is 2.8.18.32.32.18.1. The ground state electronic configuration of neutral roentgenium is [Rn].5f14.6d10.7s1 (a guess based upon that of gold) and the term symbol of roentgenium is 2S1/2网络斗地主下载 (a guess based upon guessed electronic structure).

                        Roentgenium: description  

                        网络斗地主下载Roentgenium, was discovered on 8th December 1994 at the GSI in Darmstadt, Germany. The interested reader should consult the on-line version of for a fascinating insight into research on "super-heavy" atoms.

                        Chemically, roentgenium should be in the same group as the elements copper, silver, and gold (Group 11).

                        Roentgenium: physical properties

                        More physical properties...

                        Roentgenium: heat properties

                        More thermochemical properties...

                        Roentgenium: atom sizes

                        More atomc size properties...

                        Roentgenium: electronegativities

                        More electronegativity properties...

                        Roentgenium: orbital properties

                        More orbital properties...

                        Roentgenium: abundances

                        More geological data...

                        Roentgenium: crystal structure

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

                        More crystallographic data...

                        Roentgenium: biological data

                        Element 111, roentgenium, has no biological role.

                        More biological data...

                        Roentgenium: uses

                        Uses...

                        Roentgenium: reactions

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

                        View reactions of roentgenium...

                        Roentgenium: binary compounds

                        Binary compounds with halogens (known as halides), oxygen (known as oxides), hydrogen (known as hydrides), and other compounds of roentgenium where known.

                        View binary compounds...

                        Roentgenium: compound properties

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

                        View compound properties...

                        Roentgenium: history

                        Roentgenium was discovered by S. Hofmann, V. Ninov, F. P. Hessberger, P. Armbruster, H. Folger, G. Münzenberg, and others in 1994 at Gesellschaft für Schwerionenforschung (GSI) in Darmstadt, Germany.. Origin of name: the proposed name roentgenium has yet ot be accepted formally, but lies within the long established tradition of naming elements to honour famous scientists. Wilhelm Conrad Roentgen discovered X-rays in 1895.

                        More history...

                        Roentgenium: isotopes

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

                        More isotope and NMR data...

                        Roentgenium: isolation

                        Isolation: only a few atoms of element 111, roentgenium, have ever been made through a nuclear reaction involving fusion of an isotope of bismuth, 209Bi, with one of nickel, 64Ni.

                        209Bi + 64Ni → 272Rg + 1n

                        网络斗地主下载Isolation of an observable quantity has never been achieved, and may well never be.

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