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7. Which of the following reactions is an alpha decay reaction? a. ¹3 Ba 137 56 137 564 222 b. Ra c. 1331 p*= 8. What is the definition of isotopes? 400 Ba a. Elements that have the same number of protons and neutrons. b. Elements that have the same number of protons but a different number of electrons. c. Elements that have the same number of neutrons but a different number of electrons. d. Elements that have the same number of protons but a different number of neutrons. 300 He 9. How many protons, electrons, & neutrons are in an atom of chromium-53 (Cr)? 200 + OY 100 + 52 218Rn 86 10. Which radiation needs a thick, dense material to block it? 50 25 134Xe + je 11. Refer to the following graph. What is the half-life of the isotope? mass (g) n= Time (seconds) 16 Half-life =

7. Which of the following reactions is an alpha decay reaction? a. ¹3 Ba 137 56 137 564 222 b. Ra c. 1331 p*= 8. What is the definition of isotopes? 400 Ba a. Elements that have the same number of protons and neutrons. b. Elements that have the same number of protons but a different number of electrons. c. Elements that have the same number of neutrons but a different number of electrons. d. Elements that have the same number of protons but a different number of neutrons. 300 He 9. How many protons, electrons, & neutrons are in an atom of chromium-53 (Cr)? 200 + OY 100 + 52 218Rn 86 10. Which radiation needs a thick, dense material to block it? 50 25 134Xe + je 11. Refer to the following graph. What is the half-life of the isotope? mass (g) n= Time (seconds) 16 Half-life =

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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7. Which of the following reactions is an alpha decay reaction? a. ¹3Ba 137 Ba + Or b. Ra c. 1331 p*= 8. What is the definition of isotopes? He a. Elements that have the same number of protons and neutrons. b. Elements that have the same number of protons but a different number of electrons. C. Elements that have the same number of neutrons but a different number of electrons. d. Elements that have the same number of protons but a different number of neutrons. + 9. How many protons, electrons, & neutrons are in an atom of chromium-53 (Cr)? 400 300 218p 134Xe + _ie 200 100 50 25 10. Which radiation needs a thick, dense material to block it? e' = 11. Refer to the following graph. What is the half-life of the isotope? mass (g) n= Time (seconds) Half-life =
Transcribed Image Text:7. Which of the following reactions is an alpha decay reaction? a. ¹3Ba 137 Ba + Or b. Ra c. 1331 p*= 8. What is the definition of isotopes? He a. Elements that have the same number of protons and neutrons. b. Elements that have the same number of protons but a different number of electrons. C. Elements that have the same number of neutrons but a different number of electrons. d. Elements that have the same number of protons but a different number of neutrons. + 9. How many protons, electrons, & neutrons are in an atom of chromium-53 (Cr)? 400 300 218p 134Xe + _ie 200 100 50 25 10. Which radiation needs a thick, dense material to block it? e' = 11. Refer to the following graph. What is the half-life of the isotope? mass (g) n= Time (seconds) Half-life =
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