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At the December 6, 2019 TEDxNashvilleWomen, [15] Phelps presented the talk "How I Claimed a Seat at the Periodic Table", where, according to TED Talks, she "debunk[ed] the myth of solitary genius and challenge[d] institutional elitism by sharing stories of women of color making their way in science".
This is an accepted version of this page This is the latest accepted revision, reviewed on 28 January 2025. Development of the table of chemical elements The American chemist Glenn T. Seaborg —after whom the element seaborgium is named—standing in front of a periodic table, May 19, 1950 Part of a series on the Periodic table Periodic table forms 18-column 32-column Alternative and extended ...
Dmitri Ivanovich Mendeleev (/ ˌ m ɛ n d əl ˈ eɪ ə f / MEN-dəl-AY-əf; [2] [b] [a] 8 February [O.S. 27 January] 1834 – 2 February [O.S. 20 January] 1907) was a Russian chemist known for formulating the periodic law and creating a version of the periodic table of elements.
Mendeleev's table did not include any of the noble gases, however, which had not yet been discovered. Gradually the periodic law and table became the framework for a great part of chemical theory. By the time Mendeleev died in 1907, he enjoyed international recognition and had received distinctions and awards from many countries.
Perey named the element francium, after her home country, and it joined the other alkali metals in Group 1 of the periodic table of elements. [3] [7] Francium is the second rarest element (after astatine) — only about 550g exists in the entire Earth's crust at any given time — and it was the last element to be discovered in nature.
Six years after discovering elements 104 and 105, Harris took a position with the Berkeley Lab Office of Equal Opportunity. There he worked with Benjamin Pope to recruit more women and minorities to work at the lab, focusing on outreach at Historically Black Colleges and Universities (HBCUs) and forming partnerships with engineering colleges. [4]
Already, some people are chalking Harris' loss up to sexism, misogyny, and racism. Surely some voters were motivated by these things, as some people always are. But one needn't imagine a mass hate ...
Weeks was the first woman to receive a Ph.D. in chemistry at the University of Kansas and the first woman to be a faculty member there. Her book Discovery of the Elements is considered the "first connected narrative of how scientists unraveled the mysteries of matter" and a "classic of chemistry". [ 2 ]