Monday, February 15, 2016

table of elements

 
H
1
He
2
Li
3
Be
4
B
5
C
6
N
7
O
8
F
9
Ne
10
Na
11
Mg
12
Al
13
Si
14
P1
5
S
16
Cl
17
A
1
K
19
Ca
20
Sc
21
Ti
22
V
23
Cr
24
Mn
25
Fe
26
Co
27
Ni 28 Cu
29
Zn
30
Ga
31
Ge
32
As
33
Se
34
Br
35
Kr
36
Rb
37
Sr
38
Y
39
Zr
40
Nb
41
Mo
42
Tc
43
Ru
44
Rh
45
Pd
46
Ag
47
Cd
48
In
49
Sn
50
Sb
51
Te
52
I
53
Xe
54
Cs
55
Ba
56
La
57
Ce
58
Pr
59
Nd
60
Pm
61
Sm
62
Eu
63
Gd
64
Tb
65
Dy
66
Ho
67
Er
68
Tu
69
Yb
70
Lu
71
?
72
?
73
?
74
?
75
Hf
76
Ta
77
W
78
Re
79
Os
80
Ir
81
Pt
82
Au
83
Hg
84
Tl
85
Pb
86
Bi
87
Po
88
At
89
Rn
90
Fr
91
Ra
92
Ac
93
Th
94
Pa
95
U
96
Np
97
Pu
98
Am
99
Cm
100
Bk
101
Cf
102
Es
103
Fm
104
Md
105
No
106
Lr
107

Wednesday, October 7, 2015

   Introduction

At present, it is impossible, as a general case, to derive by means of quantum-mechanical calculations the crystalline structure of metal in relation to electronic structure of the atom. However, Hanzhorn and Dellinger indicated a possible relation between the presence of a cubical volume-centered lattice in subgroups of titanium, vanadium, chrome and availability in these metals of valent d-orbitals. It is easy to notice that the four hybrid orbitals are directed along the four physical diagonals of the cube and are well adjusted to binding each atom to its eight neighbours in the cubical volume-centered lattice, the remaining orbitals being directed towards the edge centers of the element cell and, possibly, participating in binding the atom to its six second neighbours 


   http://natureofcrystalstructure.blogspot.com

     In quantum mechanics, the default for each subsequent element nuclear charge increases in the center unit, and the filling is spdf-electron configurations. We have a nuclear charge is on the surface, because the number of protons and number of neutrons in the nucleus such that on the surface of the kernel should be protons and neutrons, and neutrons inside only, that is, on the surface of the nucleus formed some shell. In addition, protons must build, as well as their e-coat attracts. The question can be considered in the calculation of the core point and for how long?
    Our philosophy is that you can not describe the nature of the mathematical one hundred percent confirmed. But the aims, of course, to such a description is necessary.

  http://hfilipen-talentedchildren.blogspot.com
  http://tableelements.blogspot.com
  http://physicaltable.blogspot.com

the table of elements
Each subsequent element is different from the previous view that its nucleus the number of protons increases by one, and the number of neutrons increases, in the general case for a few. That is, the kernel is always more neutrons than protons (not counting the very light nuclei). In the literature it is strange the ratio of neutrons to the number of protons, for any kernel, nothing is explained. To build a model of atomic nuclei we note that while the alpha radioactivity of helium nuclei have approximately equal energy. Therefore, on the outer envelope of the kernel will place all of the protons with the same number of neutrons, ie at one energy level can only bosons, which located on the outer envelope of the nucleus and the alpha particles are. Inside the nucleus putting the remaining neutrons, whose task will be the weakening of electrostatic repulsion of protons fields. Assuming a spherical nucleus, and the radii of protons and neutrons of about the same, for any element was the kernel model to explain the ratio of neutrons to the number of protons, derived from the package kernel atom nucleons. (Mismatch 0-10%). Radioactive decay is probably associated with the compression of the nucleus, because with the growth of the sequence number of neutrons an element of the kernel becoming increasingly weakened radial repulsive force of protons. If the mass of the nucleus to take primary and secondary chemical properties of the atom, the table of elements atomic weight should be monotonically changed, both horizontally and vertically. Building the table on these grounds, we are forced, after lutetium and Lawrence left four empty seats, so that the chemical properties of elements. Perhaps, at the opening of the need to become the definition of the charge of the nucleus! (Charge of the nucleus is determined only for copper and platinum).

 http://hfilipen-talentedchildren.blogspot.com
     Abstract

The literature generally describes a metallic bond as the one formed by means of mutual bonds between atoms' exterior electrons and not possessing the directional properties. However, attempts have been made to explain directional metallic bonds, as a specific crystal metallic lattice.

This paper demonstrates that the metallic bond in the densest packings (volume-centered and face-centered) between the centrally elected atom and its neighbours in general is, probably, effected by 9 (nine) directional bonds, as opposed to the number of neighbours which equals 12 (twelve) (coordination number).

Probably, 3 (three) "foreign" atoms are present in the coordination number 12 stereometrically, and not for the reason of bond. This problem is to be solved experimentally.

 http://natureofcrystalstructure.blogspot.com