Yuanrium
Yuanrium(yuan)，Element 119, the IA group alkali metals, is radioactive and has the chemical symbol Yr. It was discovered and named by Zhao Mingyi. yuan is very unstable, and it have strong radioactivity, and it is rare in nature.
primary
Chinese name: 𨭦,圓
English name:yuarnium,yuan
Element symbol: Yr
Atomic number: 119
Group: Alkali metals
Density: 2.5051g/cm3
Color: Yellow
Relative atomic mass: 295.138
Price electronic layout: 8s1
Valence electrons are arranged in each energy level: 2, 8, 18, 32, 32, 18, 8, 1
Electronic number: 2-8-18-32-32-18-8-1
Electronic layer: K-L-M-N-O-P-Q-R
Oxidation states: 0,+1,+3,+5
Electronegativity: 0.58
Crystal structure: Body centered cubic unit cell, each cell containing 2 metal atoms
Preparation method: Cr+Y=power generation=Yr+C
Chemical properties
Due to nuclear instability, the longest half-life of Yr is Yr-295, only 51.38 seconds. Its chemical properties can only be studied in trace amounts. It is currently the lightest alkali metal metamaterial element discovered, and is also extremely unstable like other alkali metals. However, its relative metamaterial effect, it exhibits greater inertness than cesium and francium. Additionally, the atomic structure of element 114 is stable and has rare gas properties, even exhibiting the+3 and+5 oxidation states of transition metals. Common compounds with these two oxidation states include Yr3and YrO3-. The chemical properties of Yr are active, and most Yr salts are water-soluble. Due to its radioactivity and extreme reactivity, pure Yr cannot be produced at present. Currently, the research team of Mercury Star has already produced Yr - mercury amalgam containing 8% metal. Common Yr - salt include super hydrochloric acid Yr - Yr10Cl10and NaYrO3.
culture
yuanrium hydroxide is the national alkali of Sb star(antimonton)
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