
Oganesson (Og) is a chemical element of the periodic table, located in the group 18 and the period 7, and has the atomic number 118. It is named after the Russian nuclear physicist, Yuri Oganessian. It is a member of the noble gas group and is the last element of the 7th period. It is a transuranium element and is counted as one of the radioactive elements.
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– p block |
FAQs on Oganesson Element
Oganesson |
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‣ What does oganesson look like? Appearance: metallic (predicted) |
‣ Who discovered oganesson? When was the element oganesson discovered? Prediction: Hans Peter Jorgen Julius Thomsen (1895) Discovery: Joint Institute for Nuclear Research and Lawrence Livermore National Laboratory (2002) |
‣ Where is oganesson located on the periodic table?![]() Location: Oganesson is found in the seventh row of the periodic table, next to the tennessine element. |
‣ What is the atomic number of oganesson? Atomic number (Z): 118 |
‣ What is the symbol of oganesson? Symbol: Og |
‣ What is the atomic weight of oganesson? Standard atomic weight: [294] |
‣ What block is oganesson in on periodic table? Block: p-block |
‣ What is the group number of the element oganesson? Group: 18 (noble gases) |
‣ What period is oganesson in on periodic table? Period: 7 |
‣ What is oganesson atomic radius? Atomic radius: empirical: 152 pm (predicted) |
‣ Oganesson covalent radius: 157 pm (predicted) |
‣ What is oganesson melting point? Melting point: 325 ± 10 K (177 ± 10 °C, 350 ± 18 °F) (predicted) |
‣ Oganesson critical point: 439 K, 6.8 MPa (extrapolated) |
‣ How many electron shells does oganesson have? Electrons per shell: 2, 8, 18, 32, 32, 18, 8 (predicted) |
‣ What is the electron configuration for oganesson? Electron configuration: [Rn] 5f14 6d10 7s2 7p6 (predicted) |
‣ Oganesson ionization energies: 1st: 860.1 kJ/mol (predicted) 2nd: 1560 kJ/mol (predicted) |
‣ Is oganesson a solid, liquid or gas? Phase (at r.t): solid (predicted) |
‣ Oganesson density (near r.t): 6.6-7.4 g/cm3 (predicted) |
‣ Oganesson natural occurrence: synthetic |
‣ Oganesson oxidation state: (-1), (0), (+1), (+2), (+4), (+6) (predicted) |
‣ Oganesson heat of fusion: 23.5 kJ/mol (extrapolated) |
‣ Oganesson heat of vaporization: 19.4 kJ/mol (extrapolated) |
‣ What is the crystal structure of oganesson? Crystal structure: face-centered cubic (fcc) (extrapolated) |
‣ Oganesson CAS number: 54144-19-3 |
‣ How many isotopes does oganesson have?
Main isotopes of oganesson | ||||
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Isotope | Abundance | Half-life (t1/2) | Decay mode | Product |
294Og | syn | 0.69 ms | α SF | 290Lv |
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