Z atom,

Tabulated buildup factors depend on the type of primary radiation, the energy, E, of the primary radiation, the charge, Z, atomic number, A, and thickness of the shielding material. 

Compounds of type 6 containing ZR substituents with a -electron pair on the Z atom bound to the ring carbon (Z = O, S, NH) are formed by displacement of the first chlorine atom of cyanuric chloride by weU-known nucleophiles. Their basicity should be greater than that of cyanuric chloride because of the mesomeric electron release of the ZR... 

Symbol z Atomic Mass Symbol z Atomic Mass... 

Solvent0 Electrode System Eozi/V vs. aq. SHE vs. BBCr f Z Atomic density/cm 2 References... 

Z., Atomic Scale Deformation in the Solid Surface Induced by [54]... 

Zhang, T., Wang, H., and Hu, Y. Z., Atomic Stick-Slip Friction Between Commensurate Self-Assembled Monolayers," Tribology Letters, Vol. 14, No. 2,2003, pp. 69-76. 

Where Z = atomic number, A — atomic weight, E the electron energy (keV), and p the density (g/cm3). 

FIGURE 1. The relationships between the methyl deviation, 5(CH3— Z), and Pauling electronegativity of the bonded Z atom in various homologous functional group series, CH3—(CH2)m—Z. See References 17b and 18... 

E = energy (at states a and b) e = charge on electron a0 = Bohr radius z = atomic radius... 

The dendrimer density z (atomic mass units per unit volume) clearly minimizes... 

Notice, moreover, that one face-centred cubic cell of atoms X in which all the interstices are occupied (the octahedral by X and the tetrahedral by Z atoms) is equivalent to a block of 8 XZ, CsCl-type cells (see Fig. 3.31). This relationship (and others with other structures such as Li3Bi and MnCu2Al) should be kept in mind when considering, for instance, phase transformations occurring in ordering processes. 

Element Z (atomic ) Upper Crust Shale Pelagic Clay Phosphorite Fe-Mn Nodule Fe-Mn Crust MOR Basal Sediment MOR Ridge Sediment Seawater Hydro- thermal Fluid... 

From the information on the right side of the C3V character table, translations of all four atoms in the z, x and y directions transform as Ai(z) and E(x,y), respectively, whereas rotations about the z(Rz), x(Rx), and y(Ry) axes transform as A2 and E. Hence, of the twelve motions, three translations have Ai and E symmetry and three rotations have A2 and E symmetry. This leaves six vibrations, of which two have Ai symmetry, none have A2 symmetry, and two (pairs) have E symmetry. We could obtain symmetry-adapted vibrational and rotational bases by allowing symmetry projection operators of the irreducible representation symmetries to operate on various elementary cartesian (x,y,z) atomic displacement vectors. Both Cotton and Wilson, Decius and Cross show in detail how this is accomplished. 

The efficient screening approximation means essentially that the final state of the core, containing a hole, is a completely relaxed state relative to its immediate surround-ing In the neighbourhood of the photoemission site, the conduction electron density of charge redistributes in such a way to suit the introduction of a core in which (differently from the normal ion cores of the metal) there is one hole in a deep bound state, and one valence electron more. The effect of a deep core hole (relative to the outer electrons), may be easily described as the addition of a positive nuclear charge (as, e.g. in P-radioactive decay). Therefore, the excited core can be described as an impurity in the metal. If the normal ion core has Z nuclear charges (Z atomic number) and v outer electrons (v metallic valence) the excited core is similar to an impurity having atomic number (Z + 1) and metalhc valence (v + 1) (e.g., for La ion core in lanthanum metal, the excited core is similar to a Ce impurity). 

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