Answered: (S)The more protons an atom has, the…

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter4: Chemical Foundations: Elements, Atoms, And Ions

Section: Chapter Questions

Problem 95AP: Though the common isotope of aluminum has a mass number of 27, isotopes of aluminum have been...

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Transcribed Image Text:me more protons an atom has, the higher its number on the periodic table. And with 115 protons, eiement earns the moniker "super-heavy element. "For the sake of comparison, an atom of lead only has 82 protons. Gold has just 79. But you won't find a chunk of element 115 lying around anywhere, he highest-numbered element on the periodic chart that exists in nature is uranium, which has 92 protons at its core. However, trace amounts of plutonium and neptunium have been found naturally as well. Name 5. According to paragraph 5, what evidence is provided that indicates element 115's size? 6. According to paragraph 5, "trace amounts of plutonium and neptunium have been found naturally as well." From this sentence, trace most closely means: a. Outline b. A very small amount C. Mark d. Hint (6) "All elements with larger proton numbers have been created artificially in nuclear reactions," says the Helmholtz Center for Heavy lon Research in Germany, where the Swedish scientists made element 115. That means more than two dozen of all the known elements were artificially created. (7) Why create elements that disappear in a flash? Scientists hope one day to make one that doesn't, thus creating a brand new lasting element, Popular Science magazine reports. (8)But for this particular element, the researchers assert on their website, "any practical implications are seemingly far-fetched." The Swedish scientists have not given element 115 a name yet. Until they do, it has a temporary name: "Ununpentium." That may be harder to memorize than "element 115," but it is a scientific term made from Latin and Greek that basically means 1-1-5. 7. Describe the main ideas of paragraph 6 and 7. 8. Provide an accurate summary of the text as a whole. (Explain the development of Ununpentium- element 115.)

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