1/11 Darleane Hoffman
A Los Alamos National Laboratory researcher who confirmed the existence of element 106, seaborgium. Darleane discovered the isotope fermium-257 could split spontaneously.
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Date taken: 2020-02-07 11:13
2/11 Lise Meitner
Discoverer of protactinium. The heaviest known element was named after Lise for her research in the 1930s and 40s, and she’s received an Enrico Fermi Award for her work, a top honor from the U.S. Department of Energy. The element meitnerium was named after Lise.
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Date taken: 2019-03-06 19:00
3/11 Harriett Brooks
Studied radioactive decay and determined a new element could be produced in the process.
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Date taken: 2020-02-07 11:12
4/11 Julia Lermontova
Helped refine the separation process for ruthenium, rhodium, palladium, osmium, iridium, and platinum. Julia was the first woman to get a doctorate in chemistry in Germany.
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Date taken: 2020-02-07 11:12
5/11 Julie Ezold
Her work as a nuclear engineer at Oak Ridge National Laboratory’s 252-Californium Campaign helped discover tennessine, a synthetic chemical element (117). Photo from Battelle Memorial Institute.
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Date taken: 2020-02-07 11:12
6/11 Margaret Todd
She suggested the term “isotopes” to the man who received credit for coining the term. Margaret was a doctor in Scotland and published author. Read more about her. •Harriet Brooks – Studied radioactive decay and determined a new element could be produced in the process.
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Date taken: 2020-02-07 11:12
7/11 Marie Curie
Marie discovered the elements Polonium and Radium in the late 1890s when she was working on radioactivity. The element Curium (96) was named in her honor.
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Date taken: 2020-02-07 11:12
8/11 Ida Noddack
First scientist to propose the concept of nuclear fusion in her paper “On Element 93”. Helped discover two elements, one of which was formally accepted at the time. She was nominated for a Nobel Prize three times.
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Date taken: 2020-02-07 11:12
9/11 Marguerite Perey
Discoverer of francium, which was the last element to be discovered in nature. Marguerite started working as a lab tech at age 19
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Date taken: 2020-02-07 11:12
10/11 Dawn Shaughnessy
Helped discover six new elements in her work at Lawrence Livermore National Laboratory, elements 113-118.
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Date taken: 2020-02-07 11:12
11/11 Clarice Phelps
Clarice Phelps is a nuclear chemist at Oak Ridge National Laboratory who was the first African-American woman to contribute to the discovery of an element in the Periodic Table (117) tennessine.
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