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Xenon oxytetrafluoride (Xe O F 4) is an inorganic chemical compound.It is an unstable colorless liquid [2] [3] with a melting point of −46.2 °C (−51.2 °F; 227.0 K) [4] that can be synthesized by partial hydrolysis of XeF
Its structure was determined by both NMR spectroscopy and X-ray crystallography in 1963. [6] [7] The structure is square planar, as has been confirmed by neutron diffraction studies. [8] According to VSEPR theory, in addition to four fluoride ligands, the xenon center has two lone pairs of electrons. These lone pairs are mutually trans.
Other compounds containing xenon bonded to a less electronegative element include F–Xe–N(SO 2 F) 2 and F–Xe–BF 2. The latter is synthesized from dioxygenyl tetrafluoroborate, O 2 BF 4, at −100 °C. [17] [24] An unusual ion containing xenon is the tetraxenonogold(II) cation, AuXe 2+ 4, which contains Xe–Au bonds. [25] This ion occurs ...
The periodic table of electron configurations shows the arrangement of electrons in atoms, organized by increasing atomic number and chemical properties.
The periodic table and law are now a central and indispensable part of modern chemistry. The periodic table continues to evolve with the progress of science. In nature, only elements up to atomic number 94 exist; [a] to go further, it was necessary to synthesize new elements in the laboratory.
A chemical element, often simply called an element, is a type of atom which has a specific number of protons in its atomic nucleus (i.e., a specific atomic number, or Z). [ 1 ] The definitive visualisation of all 118 elements is the periodic table of the elements , whose history along the principles of the periodic law was one of the founding ...
Here [Ne] refers to the core electrons which are the same as for the element neon (Ne), the last noble gas before phosphorus in the periodic table. The valence electrons (here 3s 2 3p 3) are written explicitly for all atoms. Electron configurations of elements beyond hassium (element 108) have never been measured; predictions are used below.
Other compounds containing xenon bonded to a less electronegative element include F–Xe–N(SO 2 F) 2 and F–Xe–BF 2. The latter is synthesized from dioxygenyl tetrafluoroborate, O 2 BF 4, at −100 °C. [117] [124] An unusual ion containing xenon is the tetraxenonogold(II) cation, AuXe 2+ 4, which contains Xe–Au bonds. [125]