Patent
1978-09-13
1980-04-29
Skogquist, Harland S.
G09B 2324
Patent
active
041998766
ABSTRACT:
A device for displaying a new and improved periodic table of the chemical elements is comprised of four detachable, coaxially mounted cylinders. Each cylinder is divided into an upper cylindrical section and a lower cylindrical section. The sections are also detachably mounted. The upper surfaces of each of the cylindrical sections are marked with discrete sectors containing indicia that denote the chemical elements. The device can also be used to determine n and l numbers of quantum theory for selected elements. An aid that has a transverse surface marked to correspond to the discrete sectors on the upper surfaces of the cylindrical sections is used to determine m.sub.l and m.sub.s numbers of quantum theory for selected elements.
A second device for displaying the new and improved periodic table of the elements is in the form of four detachable, concentrically mounted spheres. The surface of each of the spheres is divided into an upper hemisphere and a lower hemisphere. The hemispheres are preferably detachably mounted. The outer surface of each of the hemispheres is marked with discrete sectors containing indicia that denote the chemical elements.
REFERENCES:
patent: 3581409 (1971-06-01), Alexander
patent: 3724098 (1973-04-01), McSmith
Baxley Charles E.
Skogquist Harland S.
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