Page 351 - Teacher Preview Copy
P. 351
. 12: Nuclear Chemistry
Topic
4. Decay modes of radioisotopes: Determining decay modes using Reference Table N
1. Which radioisotope is a beta emitter?
1) Ne-19 2) Ca-37 3) Co-60 4) Fr-220
2. Which radioactive isotope is an alpha emitter?
99
131
226
90
1) Ra 2) Tc 3) Sr 4) I
3. Which nuclide will emit a positron when decaying?
1) Iron-53 2) Francium-220 3) Hydrogen-3 4) Cesium-137
4. Which isotope spontaneously decays and emits a particle with a charge of +2?
198
137
53
1) Fe 2) Cs 3) Au 4) 220 Fr
Teacher Preview Copy
5. According to Reference Table N, the radioactive decay of which isotope will emit a particle with a
Teacher Preview Copy
charge of a +1?
1) Phosphorous-32 2) Cobalt-60 3) Thorium-232 4) Iron-53
6. Which particle is spontaneously emitted in the nucleus of Calcium - 37?
1) Alpha 2) Beta 3) Positron 4) Electron
226
7. When Rn spontaneously decays, it releases a particle with a mass of
1) 4 2) 0 3) 2 4) 1
8. Which notation of a radioisotope is correctly paired with the notation of its emission particle?
16
0
99
1
0
4
1) 37 K and e 2) 222 Rn and He 3) N and p 4) Tc and e
19 -1 86 2 7 1 43 +1
9. Which two radioisotopes have the same decay mode?
233
99
42
232
32
222
37
220
1) K and K 2) Fr and Rn 3) Th and P 4) U and Tc
5. Separation emanations: Determining path of emission particles in an electric field
1. Which emanation is attracted toward a negatively charged electrode of an electric field?
2) Beta particle
3) Gamma rays
1) Alpha particle
4) Neutron
2. Which nuclear emission moving through an electric field would be attracted toward a positive
electrode?
1) Proton 2) Gamma radiation 3) Beta Particle 4) Alpha particle
3. The path of which nuclear emission would not be affected when passing through an electric field?
1) Positron 2) Gamma 3) Alpha 4) Beta
4) In the diagram below, the radiation from a radioactive source is being separated as it passes
between electrically charged plates. What are the three types of radiation observed on the
detector?
1) X = Alpha, Y = Beta, Z = Gamma 3) X = Beta, Y = Gamma, Z = Alpha
2) X = Gamma, Y = Beta, Z = Alpha 4) X = Gamma, Y = Alpha, Z = Beta
Copyright©2010 E3 Scholastic Publishing. All Rights Reserved. SurvivingChem.com 341
Topic
4. Decay modes of radioisotopes: Determining decay modes using Reference Table N
1. Which radioisotope is a beta emitter?
1) Ne-19 2) Ca-37 3) Co-60 4) Fr-220
2. Which radioactive isotope is an alpha emitter?
99
131
226
90
1) Ra 2) Tc 3) Sr 4) I
3. Which nuclide will emit a positron when decaying?
1) Iron-53 2) Francium-220 3) Hydrogen-3 4) Cesium-137
4. Which isotope spontaneously decays and emits a particle with a charge of +2?
198
137
53
1) Fe 2) Cs 3) Au 4) 220 Fr
Teacher Preview Copy
5. According to Reference Table N, the radioactive decay of which isotope will emit a particle with a
Teacher Preview Copy
charge of a +1?
1) Phosphorous-32 2) Cobalt-60 3) Thorium-232 4) Iron-53
6. Which particle is spontaneously emitted in the nucleus of Calcium - 37?
1) Alpha 2) Beta 3) Positron 4) Electron
226
7. When Rn spontaneously decays, it releases a particle with a mass of
1) 4 2) 0 3) 2 4) 1
8. Which notation of a radioisotope is correctly paired with the notation of its emission particle?
16
0
99
1
0
4
1) 37 K and e 2) 222 Rn and He 3) N and p 4) Tc and e
19 -1 86 2 7 1 43 +1
9. Which two radioisotopes have the same decay mode?
233
99
42
232
32
222
37
220
1) K and K 2) Fr and Rn 3) Th and P 4) U and Tc
5. Separation emanations: Determining path of emission particles in an electric field
1. Which emanation is attracted toward a negatively charged electrode of an electric field?
2) Beta particle
3) Gamma rays
1) Alpha particle
4) Neutron
2. Which nuclear emission moving through an electric field would be attracted toward a positive
electrode?
1) Proton 2) Gamma radiation 3) Beta Particle 4) Alpha particle
3. The path of which nuclear emission would not be affected when passing through an electric field?
1) Positron 2) Gamma 3) Alpha 4) Beta
4) In the diagram below, the radiation from a radioactive source is being separated as it passes
between electrically charged plates. What are the three types of radiation observed on the
detector?
1) X = Alpha, Y = Beta, Z = Gamma 3) X = Beta, Y = Gamma, Z = Alpha
2) X = Gamma, Y = Beta, Z = Alpha 4) X = Gamma, Y = Alpha, Z = Beta
Copyright©2010 E3 Scholastic Publishing. All Rights Reserved. SurvivingChem.com 341
