Artistic Periodic Table in Honor of Mendeleev

Quantum-mechanical Description of Mendeleev Periodic Table

Contents 1. Introduction 2. Historical notes 3. The atomic models 4. The first quantum atomic model 5. The standard Schrödinger quantum hydrogen atom 5.1. The azimuthal solution and the magnetic quantum number 5.2. The polar solution and the orbital quantum number 5.3. Polar and azimuthal solutions set together 5.4. The radial solution and the principal quantum number 5.5. Final formulas for th...

From the Mendeleev periodic table to particle physics and back to the periodic table

We briefly describe in this paper the passage from Mendeleev’s chemistry (1869) to atomic physics (in the 1900’s), nuclear physics (in the 1932’s) and particle physics (from 1953 to 2006). We show how the consideration of symmetries, largely used in physics since the end of the 1920’s, gave rise to a new format of the periodic table in the 1970’s. More specifically, this paper is concerned with...

Cracks in the periodic table.

The Periodic Electronegativity Table

The origins and development of the electronegativity concept as an empirical construct are briefly examined, emphasizing the confusion that exists over the appropriate units in which to express this quantity. It is shown how to relate the most reliable of the empirical scales to the theoretical definition of electronegativity in terms of the quantum potential and ionization radius of the atomic...

Kinematic variables of table vault on artistic gymnastics

Vault is one of the artistic gymnastics events, either for males and females competitions. Since 2001, vault regulations include an approach running of 25 m, a springboard and a rectangular table with a surface measuring 1.20 m x 0.95 m.  e table height is di€ erent among males (1.35 m), females (1.25 m) and juniors categories (1.15 m).  e competition regulations require from a gymnast to per...