Chemistry, 11e Chapte Study guides, Class notes & Summaries

21.1 Multiple-Choice and Bimodal Questions 1) What percentage of electricity generated in the U.S. is from commercial nuclear plants? A) 1% B) 10% C) 20% D) 50% E) 90% Answer: C Diff: 1 Page Ref: Ch. 21 Intro. 2) By what process does thorium-230 decay to radium-226? A) gamma emission B) alpha emission C) beta emission D) electron capture E) positron emission Answer: B Diff: 1 Page Ref: Sec. 21.1 3) The alpha decay of what isotope of what element produces lead-206? A) poloniu...