Reference no: EM132287471
1. Which of the following would be an exothermic process? There may be more than one correct answer
A) Magma solidifying
B) Tinder burning
C) Ice cream melting
D) Ice melting
2. Which polymer is found in the human body? (select all that apply).
A) Polypropylene
B) DNA
C) Protein
D) Cellulos
3. In a experimental polymerization reaction, water is generated. The polymer must be a(an):
A) Addition Polymer
B) Copolymer
C) Condensation polymer
D) Crosslinked
4. Which of the following is a natural polymer found in plants?
A) Polypropolyne
B) Fatty Acids
C) Teflon
D) Starch
5. Molybdenum-99 decays by beta decay emission, resulting in an electron and:
A) Technetium-43
B) Technetium-99
C) Niobium-42
D) Niobium-99
6. In the process of electron capture:
A) an electron and a proton react to form a neutron
B) an electron and a neutron react to form to a proton
C) a proton is converted to a neutron and an electron.
D) a neutron is converted to a proton and an electron.
7. In alpha decay, what change is observed in the atomic number?
A) decrease of 2
B) decrease of 4
C) increase of 2
D) no change
8. In beta decay, what change is observed in the atomic number?
A) decrease of 2
B) no change
C) increase of 1
D) decrease of 1
9. When Iodine-131 decays by beta emission, what is the product?
A) Iodine-132
B) Xenon-131
C) Tellurium-130
D) Iodine-130
10. An isotope with 82 neutrons and 49 protons undergoes positron emission. How many neutrons will be in the new isotope?
A) 81
B) 82
C) 83
D) 48
11. Which of the following is an exothermic process"
A) photosynthesis
B) ethanol evaporating
C) Water Freezing
D) octane evaporating
12. You have four potential imaging isotopes, A, B, C, and D. Their half-lives are 50 seconds, 10 mins, 18 hours, and 6 years respectively. Which of these would you choose for medical imaging applications?
A) A
B) B
C) C
D) D
13. Oxygen-22 decays to Fluorine-22. What type of emission is this?
A) Gamma
B) Alpha
C) Beta
D) Positron
14. Carbon-11 decays by positron emission. What will the atomic number of the resulting product be?
A) 11
B) 10
C) 6
D) 5
15. This radioactive decay process causes a decrease in the atomic number. More than one answer may be correct:
A) Alpha
B) Beta
C) Gamma
D) Positron Emission