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Question 7 Question Question 1 3.04 pts The Isotopesc decays to "Ti, What decay process has...
Question 11 4 pts By what (single step) process does Radon-222 (Rn-222, atomic # = 86) decay to Polonium-218 (Po, atomic # - 84)? A) positron emission B) electron capture C) a particle emission D) B particle emission B ОА OD Ос U Question 12 4 pts
1. What are five types of radioactive decay studied in this unit? What is the "byproduct" for each decay type (in addition to the daughter nucleus)? Alpha Radiation: Beta Radiation: Gamma Radiation: Positron Emission: Electron Capture: 2. Which of the following could we use to predict if a nucleus is stable? A. The number of protons = the number of neutrons if Z<=20 B. It has an even number of protons and neutrons. C. It has an odd number of...
V Question 5 3.03 pts Suppose a radioactive isotope has a half-life t% = 99.1 hr. How long will it take for a sample of the isotope to decay to 3.0% of its original activity? a. 218 hr b. 0.0354hr c. 348 yr d. 297 hr e. 501 hr O a Ob Ос Question 6 3.03 pts A radioactive isotope has a half-life, t% = 27.3 yr How long will it take for a 3.27 mCi sample of this isotope...
Questions 3.03 Suppose a radioactive isotope has half-life-99.11. How long will take for a sample of the Isotope to decay to 3.0% of its originaltivity? a 2181 b. 0.0354h C348 yr d. 297 h e. 501 he Oь Od Od O. Question 303 A radioactive stope has halte-273 How long will be for 3.27 mmple of the Isotope to decay to 0.351 CIT 00817 y 382 y 133 y d. 87.9 y 6.60.9 y O. Оe Question 7 3.03 pts...
D. Question 13 4 pts In the following equation, what particle or type of radiation decay is needed in order to balance it? 1471Pm→ 147 42Sm + ? Periodic Table of the Elements symbol ទ្ធ al ១-០ = ១ ខ្ញុំ រៀនន នន ga| ខ ខិ Egg e-ខ្ញុំ! y decay. positron decay or electron capture. other nucleon. a decay. B decay
Question 23 1 pts 23. What is the likely value of the correlation coefficient? a) +1 b)-1 c) d) Undefined O a Ob od Question 29 1 pts 29. Over time, the correlation between per capita cheese c umption and the umber of civil engineering degrees is approximately -0.96. What is this saying? Select the most correct answer a) As the amount of cheese consumption goes down, the number of civil engineering degrees goes up. b) As the amount of...
D Question 12 10 pts Identify what type of electron microscope was used to capture the following image and explain your choice. B 100 nm B TAAI EE3 E G T 1h 1200 X X EE Paragraph -
Question 8 4 pts What types of splitting patterns would you expect in the proton NMR spectrum of the molecule shown below? Mark all that apply. es doublet singlet A triplet с quartet D sextet E B ОА OB Ос OD ОЕ Question 9 4 pts Which compound corresponds to the H NMR spectrum below? (Integral values are indicated above/beside signals.) 3 3 2 1 0 2 PPM FO 6 ho La А B с D E OB o D...
Question 15 1 pts What is the largest output of the function x + y on the ellipse 22 + y2 = 12 4 A) V5 B) 6 C) V7 D) 25 E) 10 OC OA OD OE OB
Question 10 4 pts Which process has AS > 0 (increase S)? A) H2O(g) + H2O(1) B) 2Hg(1) + O2(g) - 2HgO(s) C) CaO(s) + CO2(g) CaCO3(s) D) 2Na,O2 (s) + 2H2O(s) 4NaOH(aq) + O2 (g) o B Ос ОА OD 4 pts Question 11