Tennessine (Ts), artificially produced transuranium element of atomic number 117. It is highly radioactive and unstable element. Phase: Solid (predicted) Tennessine (Ts) From Wikipedia, the free encyclopedia Tennessine is a superheavy artificial chemical element with an atomic number of 117 and a symbol of Ts. Atomic mass of Tennessine is 294 u.. Electron affinity of Tennessine is — kJ/mol. According to the Mendeleev’s nomenclature of undiscovered elements, Tennessine was named as eka-astatine or element-117.Tennessine was synthesized by collaboration of an American-Russian team led by Yuri Oganessia working in Dubna, Russia in 2010 [1]. Tennessine was made by a fusion reaction of element 20 with element 97: calcium-48 with berkelium-249. The synthesized atoms have lasted some tens and hundreds of microseconds and is likely to neither commonly form anions nor achieve high oxidation states. When an electron is added to a neutral atom, energy is released. In the first synthesis of tennessine, calcium ions were formed into a beam in a cyclotron (a particle accelerator) and fired at a target layer of berkelium deposited 300 nm thick on titanium foil. You can use arrow … In chemistry and atomic physics, the electron affinity of an atom or molecule is defined as: the change in energy (in kJ/mole) of a neutral atom or molecule (in the gaseous phase) when an electron is … Tennessine is a synthetic element that was discovered in 2010. Electron configuration [Rn] ... Tennessine – Element 117 is a superheavy element on the periodic table, which does not occur naturally, are synthesized by exposing a radioisotope target to a beam of another specific isotope. Atomic Number of Tennessine. In 2010 Russian and American scientists announced the production of six atoms of tennessine, which were formed when 22 milligrams of berkelium-249 were bombarded with atoms of calcium-48, at the cyclotron at the Joint Institute for Nuclear Research in Dubna, Russia.These atoms were of atomic weights 293 and 294. History and Discovery. The atomic mass is the mass of an atom. Tennessine is a chemical element with atomic number 117 which means there are 117 protons and 117 electrons in the atomic structure.The chemical symbol for Tennessine is Ts. Atomic Mass of Tennessine. Electron configuration: 1s 1 2s 2 2p 6 3s 2 3p 6 3d 10 4s 2 4p 6 4d 10 5s 2 5p 6 4f 14 5d 10 6s 2 6p 6 5f 14 6d 10 7s 2 7p 5. Electron Configuration: [Rn] 7s 2 7p 5 5f 14 6d 10 (predicted) [4] Oxidation States: −1, +1, +3, +5 (predicted) [1][4] History. An atom of Tennessine in the gas phase, for example, gives off energy when it gains an electron to form an ion of Tennessine. To find out more information about an element, simply click on it to get a full screen view, with a variety of different information, including electron configuration, general information such as boiling or melting point, and information for engineers. Ts + e – → Ts – – ∆H = Affinity = — kJ/mol. Also known as eka-astatine or element 117, it is the second-heaviest known element and penultimate element of the 7th period of the periodic table. As each element has a unique electron configuration, reading the X-ray energy levels generated from the excitation phenomena (the rejection and recovery of electrons orbiting the atom) the analyst can identify the elements within the sample, and by reading the intensity of the energies know their quantities. Tennessine is the second-heaviest known element and as of 2015, 15 Tennessine atoms have been observed: six when it was first synthesized in 2010, seven in 2012, and two in 2014. 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