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Electron Configuration of Multielectron Atoms03:26

Electron Configuration of Multielectron Atoms

42.8K
The alkali metal sodium (atomic number 11) has one more electron than the neon atom. This electron must go into the lowest-energy subshell available, the 3s orbital, giving a 1s22s22p63s1 configuration. The electrons occupying the outermost shell orbital(s) (highest value of n) are called valence electrons, and those occupying the inner shell orbitals are called core electrons. Since the core electron shells correspond to noble gas electron configurations, we can abbreviate electron...
42.8K

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Updated: Jul 19, 2025

Investigations on the GaIII Complex of EOB-DTPA and Its 68Ga Radiolabeled Analogue
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Investigations on the GaIII Complex of EOB-DTPA and Its 68Ga Radiolabeled Analogue

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埃尔-多余花.

Chen Yang1,2, Haozhe Wang3, Lun Jin1

  • 1Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States.

Inorganic chemistry
|August 16, 2023
PubMed
概括
此摘要是机器生成的。

这项研究描述了具有不同寻常磁性特性的新型埃尔比亚石榴石. 增加的含量导致更高的残留,表明复杂的磁性行为和旋转冰样挫折的潜力.

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Synthesis of 68Ga Core-doped Iron Oxide Nanoparticles for Dual Positron Emission Tomography /T1Magnetic Resonance Imaging
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Preparation, Purification, and Characterization of Lanthanide Complexes for Use as Contrast Agents for Magnetic Resonance Imaging
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Synthesis of 68Ga Core-doped Iron Oxide Nanoparticles for Dual Positron Emission Tomography /T1Magnetic Resonance Imaging
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科学领域:

  • 材料科学 材料科学 材料科学
  • 固态物理 固态物理
  • 磁力学 磁力学 是一种

背景情况:

  • 石榴石结构以其多功能性质而闻名.
  • 基于的化合物因其磁性特性而引起人们的兴趣.

研究的目的:

  • 为了合成和表征埃尔石榴石 (Er3+Ga5-xO12).
  • 为了研究这些石榴石的晶体结构和磁性排序.
  • 探索过剩和磁性行为之间的关系.

主要方法:

  • 对多晶和单晶样品的晶体结构的确定.
  • 测量磁感应度以确定磁排序温度 (TN).
  • 分析磁及其对应用磁场的依赖性.

主要成果:

  • 确定了Er3+Ga5-xO12在x=0.5和0.6.6之间的石榴相极限.
  • 观察到TN ≈ 0.8 K的远程反铁磁顺序,表明了类似旋转冰的挫折.
  • 发现磁性排序温度独立于Er过量,但残余随着Er过量而增加.

结论:

  • 合成的石榴石表现出不寻常的磁性特性,这是由于Er在八面体位点上的替代.
  • 增加Er的过剩增加了剩余,指向复杂的磁现象.
  • 磁场依赖的磁趋势与挫败的磁系统保持一致.