Graphic representation of the periodic table of chemical elements designed as a left-step series table with the symbols of the elements arranged according to their valences. This table was originated by chemist Edward G. Mazurs in 1955 and classified by Mazurs as Subtype IIIC3-4a in his seminal work Types of Graphic Representation of the Periodic System of Chemical Elements (1957). This table appears as Figure 77 on page 143 of Mazurs' 1957 publication.
1955 (Original design), Circa 1957 (Date attributed to slide)
Mazurs, Edward G. “Left-Step Series Table with Elements Arranged According to Their Valences.” Glass (material), circa 1955–1957. Edward G. Mazurs Collection of Periodic Systems Images, Box 2. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/mp48sd40x.
Mouse click to zoom in; shift-click to zoom out. Drag to pan. Pinch to zoom on touch.
The Science History Institute recognizes there are materials in our collections that may be offensive or harmful, containing racist, sexist, Eurocentric, ableist, or homophobic language or depictions. The history of science is not exempt from beliefs or practices harmful to traditionally marginalized groups. The Institute is engaged in ongoing efforts to responsibly present and address the evidence of oppression and injustice inextricable from the history of science. If you would like to learn more about our ongoing efforts or if you encounter harmful, inaccurate, or insufficient descriptions, please contact us at firstname.lastname@example.org.