百度试题 结果1 题目2.3. What is the atomic number of Fe? A. 26 B. 56 C. 28 D. 58 相关知识点: 试题来源: 解析 A 反馈 收藏
Atomic number of Cr and Fe are respectively 24 and 26, which of the following is paramagnetic with the spin of electron : - A[Cr(CO)6] B[Fe(CO)5] C[Fe(CN)6]−4 D[Cr(NH3)6]+3Submit Atomic numbers of Cr and Fe and 24 and 26 respectively, Which of the following is paramagn...
The range of uncertainty is indicative of the relatively small influence of atomic effects, such as the two-body Breit interaction terms and finite nuclear mass term, that are not included in the Breit-Pauli approximation employed in the present calculations. The extensive set of data is expected...
Here we have examined a model interface between two insulating perovskite oxides-LaAlO3 and SrTiO3-in which we control the termination layer at the interface on an atomic scale. In the simple ionic limit, this interface presents an ... Ohtomo,A.,Hwang,... - 《Nature》 被引量: 2417发表:...
a, Gibbs free energy diagram of ORR on various possible active sites atU = 0.9 V.b, Gibbs free energy diagram of the H2O2reduction reaction on PtML/PtFe(111) and Pt(111). The inserted atomic figures show the H2O2-to-2*OH conversion on PtML/PtFe(111). Pt, dark blue; Fe, ora...
where N(spin-up) and N(spin-down) represent the number of electrons in the spin-up and spin-down occupied state, respectively57,58. M(3dxy), M(3dx2 – y2), M(3dyz), M(3dxz), and M(3dz2) represent the projected of magnetic moments on Fe 3dxy, 3dx2–y2, 3dyz, 3d...
All the available experimental data on the hyperfine fields in the ferromagnetic hosts of Fe, Co, Ni, and Gd have been collected and tabulated. The best values for dilute-impurity hyperfine fields in Fe, Co, and Ni hosts are plotted as functions of the solute atomic number. Some useful rel...
No other elements with the atomic number greater than 4 were detected. X-ray single crystal studies. The crystals of phosphides intended for the X-ray single crystal examina- tion were extracted from the appropriate Santa Catharina sections after the local etching of the metal matrix in ...
(5.83 wt%). This indicates the atomic-level distribution of Cu single atoms, which is attributed to their large atomic number (Fig.2dand Supplementary Table1). For comparison, Fe single atoms are also synthesized using the same approach (denoted as 2D-Fe–N–C, Supplementary Figs.3and4...
Unit cell volume and bandgap, determined from XRD and spectrophotometry respectively, were maximized with Fe doping and decreased as the atomic number of the dopant moved away from Fe. Bandgap was generally lower atx=0.05thanx=0.02for all dopants. The saturation magnetization reached a maximum of ...