Unbiunium, 121UbuGeneral properties |
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Pronunciation | Template:Infobox element/pronunciation |
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Alternative names | element 121, eka-actinium |
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Standard atomic weight (Ar, standard) | Template:Infobox element/standard atomic weight |
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Mass number | Template:Infobox element/symbol-to-most-stable-isotope (most stable isotope) |
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Unbiunium in the periodic table |
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Template:Infobox element/periodic table |
Atomic number (Z) | 121 |
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Group | Template:Infobox element/group |
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Period | period 8 |
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Block | d-block |
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Element category | Template:Infobox element/category format, but probably a superactinide; could be considered a transition metal |
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Electron configuration | [Og] 8s2 8p1 (predicted)[1] |
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Electrons per shell | 2, 8, 18, 32, 32, 18, 8, 3 (predicted) |
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Physical properties |
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unknown |
Atomic properties |
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Oxidation states | Template:Infobox element/symbol-to-oxidation-state |
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[[Ionization energy|Template:Engvar energies]] | - 1st: 429 (predicted)[1] kJ/mol
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Template:Infobox element/spectral lines |
Other properties |
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History |
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Naming | IUPAC systematic element name |
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Main isotopes of unbiunium |
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Template:Infobox element/isotopes table |
| references |
Template:Infobox element/element navigation
Template:Template reference list
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