The noble gases and the periodic table: Telling it like it was

1969 ◽  
Vol 46 (9) ◽  
pp. 569 ◽  
Author(s):  
John H. Wolfenden
Keyword(s):  
2021 ◽  
Vol 3 (1) ◽  
pp. 11-16
Author(s):  
Petro Kosoboutskyy ◽  
◽  
Mariana Karkulovska ◽  

This paper studies regularities of proportional division, on the basis of which we show the possibility of effective application of the golden section method to modeling regularities of atomic systems and positioning of elements of noble gases of the periodic table. It is illustrated that by partial reconstruction of the Mendeleev tables, the elements of noble gases can be arranged along lines whose slope tangents in the coordinate system “the atomic number – the relative atomic mass” are in close agreement with the sequence of inverse Fibonacci numbers. It was shown that given the correct slope of axes, slope tangents of the corresponding lines does not change.


Author(s):  
R. Herrera ◽  
A. Gómez

Computer simulations of electron diffraction patterns and images are an essential step in the process of structure and/or defect elucidation. So far most programs are designed to deal specifically with crystals, requiring frequently the space group as imput parameter. In such programs the deviations from perfect periodicity are dealt with by means of “periodic continuation”.However, for many applications involving amorphous materials, quasiperiodic materials or simply crystals with defects (including finite shape effects) it is convenient to have an algorithm capable of handling non-periodicity. Our program “HeGo” is an implementation of the well known multislice equations in which no periodicity assumption is made whatsoever. The salient features of our implementation are: 1) We made Gaussian fits to the atomic scattering factors for electrons covering the whole periodic table and the ranges [0-2]Å−1 and [2-6]Å−1.


1979 ◽  
Vol 40 (6) ◽  
pp. 533-540 ◽  
Author(s):  
G. Grynberg ◽  
E. Giacobino ◽  
F. Biraben ◽  
K. Beroff
Keyword(s):  

1979 ◽  
Vol 40 (C7) ◽  
pp. C7-63-C7-64
Author(s):  
A. J. Davies ◽  
J. Dutton ◽  
C. J. Evans ◽  
A. Goodings ◽  
P.K. Stewart

1983 ◽  
Vol 44 (C7) ◽  
pp. C7-497-C7-504 ◽  
Author(s):  
T. Nakajima ◽  
N. Uchitomi ◽  
Y. Adachi ◽  
S. Maeda ◽  
C. Hirose
Keyword(s):  

2015 ◽  
Vol 49 (3) ◽  
pp. 271-282 ◽  
Author(s):  
Daxiang He ◽  
Jianfa Chen ◽  
Chen Zhang ◽  
Wei Li ◽  
Jianxun Zhou
Keyword(s):  

Sign in / Sign up

Export Citation Format

Share Document