Lesson plan
Davyum
Davyum was the proposed name for a chemical element found by chemist Serge Kern in 1877. It was shown that the material was a mixture of iridium and rhodium. In 1950 it was proposed that the new metal might also have contained rhenium, which had not been discovered in Kern's time. The proposed name paid homage to the acclaimed British chemist Sir Humphry Davy, who himself had discovered a multitude of elements, including sodium, potassium, calcium, and magnesium.
Article summary
Davyum was the proposed name for a chemical element found by chemist Serge Kern in 1877. It was shown that the material was a mixture of iridium and rhodium. In 1950 it was proposed that the new metal might also have contained rhenium, which had not been discovered in Kern's time. The proposed name paid homage to the acclaimed British chemist Sir Humphry Davy, who himself had discovered a multitude of elements, including sodium, potassium, calcium, and magnesium.
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Discussion questions
- Summarise the article in your own words. Which single claim would you verify first, and why?
- Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
- If two sources disagreed about one of these facts, what would you need in order to trust one over the other?
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Key claims and bibliography are generated from the same tracked claims and sources as the article page.