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单词 ununennium
释义

ununennium

英汉-汉英词典
n. 119号元素
词组 | 习惯用语
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  • millennium n. 一千年；太平盛世
  • unanimous adj. 全体一致的; 一致同意的; 无异议的
  • biennium n. 两年时期（期间）
  • unanimity n. 一致同意；全体一致
  • neptunium n. [化]镎(93号元素；符号Np)
中文百科

Uue

Orbitals with high azimuthal quantum number are raised in energy, eliminating what would otherwise be a gap in orbital energy corresponding to a closed proton shell at element 114, as shown in the left diagram which does not take this effect into account. This raises the next proton shell to the region around element 120, as shown in the right diagram, potentially increasing the half-lives of element 119 and 120 isotopes.[24]
A chart of nuclide stability as used by the Dubna team in 2010. Characterized isotopes are shown with borders. Beyond element 118 (the last known element), the line of known nuclides is expected to rapidly enter a region of instability, with no half-lives over one microsecond after element 121. The elliptical region encloses the predicted location of the island of stability.[10]
Empirical (Na–Cs, Mg–Ra) and predicted (Fr–Uhp, Ubn–Uhh) atomic radii of the alkali and alkaline earth metals from the third to the ninth period, measured in angstroms[2][32]

Uue（英语：Ununennium，化学符号为Uue）是一种尚未被发现的化学元素，原子序数是119，在元素周期表中排列在第8周期、1族。其相对原子质量约为297u。

据推测，Uue是一种不稳定的放射性元素，相对原子质量约为297u，其单质可能为银白色或灰色的金属。另外，由于Uue是一种碱金属元素，根据碱金属元素的递变性，Uue单质可能是一种液态金属，电负性确定小于0.7，活性很大，如果制作出稳定同位素，需要保存于矿物油中，要不然会与氧化合生成Uue2O。

由于Uue是一种碱金属元素，所以容易形成阳离子（即Uue），其氢氧化物（UueOH）可能为强碱。

英语百科

Ununennium Uue

Orbitals with high azimuthal quantum number are raised in energy, eliminating what would otherwise be a gap in orbital energy corresponding to a closed proton shell at element 114, as shown in the left diagram which does not take this effect into account. This raises the next proton shell to the region around element 120, as shown in the right diagram, potentially increasing the half-lives of element 119 and 120 isotopes.[24]
A chart of nuclide stability as used by the Dubna team in 2010. Characterized isotopes are shown with borders. Beyond element 118 (the last known element), the line of known nuclides is expected to rapidly enter a region of instability, with no half-lives over one microsecond after element 121. The elliptical region encloses the predicted location of the island of stability.[10]
Empirical (Na–Cs, Mg–Ra) and predicted (Fr–Uhp, Ubn–Uhh) atomic radii of the alkali and alkaline earth metals from the third to the ninth period, measured in angstroms[2][32]
Empirical (Na–Cs), semi-empirical (Fr), and predicted (Uue) electron affinities of the alkali metals from the third to the eighth period, measured in electron volts.[2][32] They decrease from Li to Cs, but the Fr value, (492 ± 10) meV, is 20 meV higher than that of Cs, and that of Uue is much higher still at 662 meV.[33]

Ununennium, also known as eka-francium or simply element 119, is the chemical element with atomic number 119 and symbol Uue. Ununennium and Uue are the temporary systematic IUPAC name and symbol, until a permanent name is decided upon. In the periodic table of the elements, it is expected to be an s-block element, an alkali metal, and the first element in the eighth period.
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更新时间：2025/6/17 18:25:13