01s electron

Inspection of the net atomic charges in the monomers and dimers, Table III, indicates that there is increased charge alternation in the dimer. This suggests that mutual polarization might be occurring. The net charge transfer is very small (<0.01 electrons in all cases). 

The extra electron that has been added to the crystal will be attracted to the impurity nucleus just as an electron is attracted to a proton in free space, but the attraction is greatly reduced by the dielectric constant. In addition, the electron will behave as if its mass is very small, as will be seen in Chapter 6. Both effects expand the radius of the bound orbital so that it lies mainly in the region where the dielectric screening approximation is good, and so that the binding may be only of the order of 0.01 electron volts at normal temperature these impurity states will be empty and the corresponding electrons will move freely through the crystal. In Chapter 6 we shall examine such states. 

Figure 2.01 Electron diffraction pattern of amorphous (upper) and crystalline (lower) iron. (After Ichikawa, 1973)...

Table 2.01. Electron distribution as a function of principal and subsidiary quantum numbers...

Micro-scale version with laboratory recorder (r52), device for gas chromatography 01), electronic integrator (55), control panel (50) and vacuum controller (48)... 

As can be seen in Fig. 3, the distinctive feature of the density distribution in MnAs, MnSb, and MnBi is the slower decrease of p in MnAs, when r is increased, than in MnSb and particularly MnBi. As a result, the maximum value of the electron density halfway between the atoms, i.e., where there is a possible overlap of the electron shells of the manganese atoms, is found in manganese arsenide. In absolute value, the electron density at r/dj. j = 0.5 is 0.01 electron/or 0.3% of the maximum value corresponding to r -= 0. 

Okada et al. (1984) assignment of the bands in the 37000-51000cmregion to 4f 5d transition. The spin-orbit splitting was computed as 2200 cm for the 4f state. The Mulliken-population analysis revealed a 4f occupation of 1.01 electron. It was noted by Kotzian et al. (1991a, b) that due to the compactness of the 4f shell, the 4f valence electron of Ce does not contribute to metal-ligand bonding. This is reminiscent of the bonding discussed before for the diatomic lanthanide... 

Gravitation index (all atoms) 2276.1 Gravitation index (bonded atoms) 1595.7 Electronic index (all atoms) 11.01 Electronic index (bonded atoms) 6.23 Wiener index 90.0 Randic index 5.16 Balaban index 2.46... 

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