What element did Marguerite Perey discover?
Radon
Francium
Gallium
Titanium
Answer
Francium, the answer to the question, is the last element naturally found on the periodic table. It was discovered in 1939 by Marguerite Perey. This highly radioactive element famously earned the title of "the most expensive element in the world" due to its scarcity and challenging production process.
Magnificent Marguerite Perey: A Quiz on the Pioneering French Physicist of the 20th Century!
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