About the formulation of the periodic law (PL) and periodic system of D.I. Mendeleev
Abstract
The possible specified formulation: properties of chemical elements and their compound are in periodic dependence on periodically renewing (repeated) external electronic configuration (shells) of atoms at sequential increase of a nucleus charge of elements atom. Having designated the similar periods ( 1 – I; 2,3 – II; 4,5 – III and 6,7 – IV ) Pn, we offer mathematical expression PL: Z = 2 pn2(n = I; II; III; IV).
References
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