Radionuclides used in medicine in the discovery of which Seaborg was involved.

Glenn T. Seaborg and J.J. Livingood walking in front of Sather Gate, University of California, Berkeley as they are mailing iodine-131 paper.

Here is a summary of those radionuclides used in medicine in the discovery of which I was involved. Here we have a picture of me with Jack Livingood -- I worked with him on a number of these -- on Telegraph Avenue, there's Sather Gate, on our way to the post office mailing the manuscript announcing the discovery of iodine-131. This is a picture taken by an itinerant photographer. He handed me a card and I sent him 50 cents. They don't do much of that anymore.

Glenn T. Seaborg photographed with two iodine and technetium papers.

Here are the articles reproduced showing that, in the discovery of iodine, the letter to the editor was 217 words, and in the discovery of technetium-99m 237 words. We didn't waste words in those days. Now I'm going to run quickly through the chemical elements discovered at Berkeley using the Berkeley cyclotron. I'm going to run through them very quickly. First of all, Emilio Segrè, working with Carlos Perrier in Palermo, Italy, using molybdenum from the innards of the cyclotron shipped to him by Lawrence, discovered element 43 which was later named technetium. Then Dale Corson, Ken McKenzie, Emilio Segrè in 1940, using the Berkeley 60-inch cyclotron, bombarded bismuth with helium ions to discover element 85, which was later named astatine.

Chemical elements discovered at Berkeley, California or by Berkeley teams.	Element 43, technetium (Tc). Perrier and Emilio Segrè.	Element 85, astatine. Corson, et al.

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