Charles Janet (French: [ʃaʁl ʒanɛ]; 15 June 1849 – 7 February 1932) was a French engineer, company director, inventor and biologist. He is also known for his left-step periodic table of chemical elements. [3]

2015年4月23日 · In the late 1920s, the French amateur scientist Charles Janet devised various versions of the periodic table of the chemical elements, basing the positions of the elements on patterns in the...

The PTG autonomously produced various arrangements of chemical symbols, which organized a two-dimensional array such as Mendeleev’s periodic table or three-dimensional spiral table according...

2009年1月10日 · Janet is known almost exclusively for his left-step periodic table (LSPT). A study of his writings shows him to have been a highly creative thinker and a brilliant draftsman. His approach was primarily arithmetic-geometric, but it led him to anticipate the discovery of deuterium, helium-3, transuranian elements, antimatter and energy from ...

2011年12月31日 · Janet's original left-step table leads to the loss of a perfect atomic number triad, in moving helium out of the noble gas group, whereas this new table retains the helium triad. A triad is the name given to a group of three elements falling vertically in …

Charles Janet's left step periodic table (1928) is one of alternatives to the common representation of periodic table. In comparison to the common periodic table, Charles Janet’s left step periodic table has its s-block in its right side (instead of left side) and also the s …

2010年4月1日 · This is the left-step table that was first proposed by the French engineer Charles Janet as early as 1930, and which is being increasingly discussed as a candidate for being the optimal...

The Janet Periodic Table (aka Left Step Table) may be re-arranged as a series of square matrices. Each element is represented as a cell and is identified by the atomic number (Z), shown as the upper number of each cell. The quantum numbers (n, l, mL, mS) determine the location of an element within the table.

All known chemical elements are grouped in a table called the periodic table. Elements in the same column share similar chemical properties. The four blocks of elements (blue, orange, yellow, and green) also arrange elements that share similar properties.

1964 — Ternstrom's A periodic table: A triple-combo table drawing on the advantages of the complete block system according to Werner (1905) and a horizontal Bohr line-system; the outcome resembles the left step form of Janet (1928) [67]