Nuclear Chemistry

Nuclear Chemistry Objectives Students will be able to identify what radioisotopes are and why they undergo radioactivity. Students will be able to compare properties of nuclear reactions with chemical reactions. Students will demonstrate understanding of radioactive decay through application and graphing. Students will assess the application of nuclear chemistry as a continual alternative resource of energy for developed countries. Students will understand and classify nuclear reactions by the types of radiation produced.

Radioisotopes: Bell Ringer Use your band of stability graph to answer the following questions. Analysis Questions: 1. What is a radioisotope? 2. What subatomic particles determine if an atom is a radioisotope? 3. True or False: Most atoms have a stable nucleus if it has an equal number of protons and neutrons. Explain your answer using your graph.

Nuclear Band of Stability

Also called: radioactivity; nuclear reactions A reaction that occurs within the nucleus of a radioisotope in order to stabilize it. Spontaneous Reactions Reaction rates (speed of reactions) remain constant for radioisotopes despite changes in temperature, pressure, or addition of catalyst. Radioactive Decay

Radioactive Decay: Graphing Illustrate radioactive decay via graphing data.

Chemistry I-Block: Due: Radioactive Decay Graph Worksheet Radioacitivty Article Objectives: I can use the band of stability graph to understand what a radioisotope is and to classify atoms as radioisotopes. (Band of Stability Worksheet) I can demonstrate understanding of radioactive decay through graphing, modeling, and practice problems. I can distinguish between nuclear reactions by the types of radiation produced.

Nuclear Chemistry: Bell Ringer 1.What is a radioisotope? Use the band of stability graph for qts Which isotope of iron is considered a radioisotope? Fe-52 or Fe-56? Explain how you know this for credit. 3. Approximately how many neutrons does Gadolinium (Gd) need to be stable according to your graph? 4. According to your graph, if an atom has more than 40 protons how many neutrons does it need (same, less, or more) to make its nucleus stable? Explain your answer for full credit. 5. T or F: Nuclear reactions are classified as spontaneous reactions that speed can be influenced by temperature and pressure. 6.a. Define what a half-life is for a radioisotope?

Nuclear Chemistry: Bell Ringer 1.What is a radioisotope? Use the band of stability graph for qts Which isotope of iron is considered a radioisotope? Fe-52 or Fe-56? Explain how you know this for credit. 3. Approximately how many neutrons does Gadolinium (Gd) need to be stable according to your graph? 4. According to your graph, if an atom has more than 40 protons how many neutrons does it need (same, less, or more) to make its nucleus stable? Explain your answer for full credit. 5. T or F: Nuclear reactions are classified as spontaneous reactions that speed can be influenced by temperature and pressure. 6. a. Define what a half-life is for a radioisotope?

Nuclear Band of Stability tm

Radioactive Decay: Half-Life Half-Life: The time it takes for half of a radioisotope sample (parent isotope) to decay into a more stable isotope (daughter isotope). 1. If a sample initially has 40 radioisotopes (atoms), illustrate it undergoing three half-lives. Each half-life is 20 years? 2. Why is the half-life of an isotope valuable to many disciplines of science?

Radioactive Decay Graph Worksheet astronomy.nmsu.edu

Chemistry I-Block: Due: Radioactive Decay Graph/Radioactivity article-LATE M&Mium Lab: pre-lab qts. completed Objectives: I can use the band of stability graph to understand what a radioisotope is and to classify atoms as radioisotopes. (Band of Stability Worksheet) I can demonstrate understanding of radioactive decay through graphing, modeling, and practice problems. I can distinguish between nuclear reactions by the types of radiation produced.

Radioactive Decay Lab Purpose: Simulate and graph the radioactive decay of an artificial radioisotope, M&Mium. Complete the pre-lab questions and hypothesis. thefoxisblack.com usd314.k12.ks.us

Radioactive Decay Lab Purpose: Simulate and graph the radioactive decay of an artificial radioisotope, M&Mium. *Homework: Graph data and answer post-lab questions. –Due Thursday thefoxisblack.com usd314.k12.ks.us

Radioactive Decay Lab: Data Table Number of Half- Lives Total Time (seconds) # of M&Miums (parent isotope) Daughter Isotope (decayed)

Radioactive Decay Graph astronomy.nmsu.edu

Radioactive Decay Problems 1.a. A patient is given a 100 mg sample of I-131. How much of the isotope will remain in the body after 16 days? The half-life of I-131 isotopes is 8 days. b. How many days will pass for a 1.0g sample of I-131 isotope to decay to 0.25g?

Chemistry I-Block: Due: M&Mium Lab Radioactivity Packet Objectives: I can use the band of stability graph to understand what a radioisotope is and to classify atoms as radioisotopes. (Band of Stability Worksheet) I can demonstrate understanding of radioactive decay through graphing, modeling, and practice problems. I can distinguish between nuclear reactions by the types of radiation produced.

Chemistry I-Block: Due: Radioactivity Packet Objectives: I can use the band of stability graph to understand what a radioisotope is and to classify atoms as radioisotopes. (Quiz) I can demonstrate understanding of radioactive decay through graphing, modeling, and practice problems. (Quiz) I can distinguish between nuclear reactions by the types of radiation produced.

Chemistry I-Block: Due: Radioactivity Packet Objectives: I can use the band of stability graph to understand what a radioisotope is and to classify atoms as radioisotopes. (Quiz) I can demonstrate understanding of radioactive decay through graphing, modeling, and practice problems. (Quiz) I can distinguish between nuclear reactions by the types of radiation produced.

Nuclear Radiation: Bell Ringer 1.What is nuclear radiation? 2.What are the three main classes of nuclear radiation? 3.Which class of radiation would be influenced by a positive field. Explain how you know this. 4. At nuclear reactor sites, where nuclear reactions are used to produce electricity, what kind of material do you suppose is used to prevent nuclear radiation leaks into the environment.

Nuclear Radiation: Bell Ringer 1.What is nuclear radiation? 2.What are the three main classes of nuclear radiation? 3.Which class of radiation would be influenced by a positive field. Explain how you know this. 4. At nuclear reactor sites, where nuclear reactions are used to produce electricity, what kind of material do you suppose is used to prevent nuclear radiation leaks into the environment.

Nuclear Chemistry Quiz

Nuclear Radiation Nuclear Radiation: Matter and large amounts of energy produced during a nuclear reaction. Three main types of nuclear radiation: 1.Alpha radiation (α ) 2.Beta radiation (β) 3.Gamma radiation (ϒ)

Nuclear Radiation paper wood concrete or lead Types of radiation can be classified by type of shielding. (alpha particle) (beta particle) (gamma particle)

Types of Nuclear Radiation Types of radiation can be classified by their charges.

Alpha (α ) Radiation parent decays α + daughter isotope isotope particle (stable) (unstable) (He nucleus) change in mass number: change in atomic number:

Transmutation Transmutation: An element is converted to a new element during radioactive decay. What must happen in the nucleus for a transmutation to occur? Does a transmutation occur during alpha, beta, and gamma reactions?

Beta (β) Radiation β particle change in mass number: change in atomic number: transmutation occur?

Gamma (ϒ) Radiation parent decays α + daughter isotope + ϒ isotope particle (stable) (unstable) (He nucleus) +ϒ+ϒ change in mass number: change in atomic number: transmutation occur?

Chemistry I-Block: Due: Nuclear Reaction Packet Objectives: I can use the band of stability graph to understand what a radioisotope is and to classify atoms as radioisotopes. (Quiz) I can demonstrate understanding of radioactive decay through graphing, modeling, and practice problems. (Quiz) I can distinguish between nuclear reactions by the types of radiation produced.

Nuclear Reaction Types

Nuclear Reactions Wksht

Nuclear Chemistry Assignment Students can explain the difference between fission and fusion. Students can analyze the benefits and risks of nuclear energy

Nuclear Energy Debate 1. What is the difference between fission and fusion and give an example of each? 2. Should the United States continue the research, development, and application of nuclear energy through nuclear fission or find an alternate energy source? Validate your answer with five supporting facts from your research. *Due Friday*

Fission vs. Fusion FissionFusion Similarities

Nuclear Energy Debate 1. What is the difference between fission and fusion and give an example of each? 2. Should the United States continue the research, development, and application of nuclear energy through nuclear fission or find an alternate energy source? Validate your answer with five supporting facts from your research. *Due Friday*

Nuclear Fission Fission is the splitting of a heavy nucleus by bombarding it with neutrons. cikguwong.blogspot.com chm.bris.ac.uk

Nuclear Fission Application chm.bris.ac.ukenglish-online.at Generates electricity where only steam is released into the environment.

Nuclear Fission Problem Nuclear Waste: Spent fuel rods must be disposed of properly. (pg. 812 in text) On-site or off-site holding tanks called pools. coto2.wordpress.com

Nuclear Fusion Nuclear Fusion – Small radioisotope nuclei combine. mrbarlow.wordpress.com

Nuclear Fusion Produces immense amount of energy. Does not produce nuclear waste Requires immense amount of energy. Example: sun (40,000,000 0 C) scienceknowledge.org

Nuclear Energy Debate breakthrougheurope.org

Nuclear Energy 1. What is the difference between fission and fusion and give an example of each? 2. Should the United States continue the research, development, and application of nuclear energy through nuclear fission?

earth-policy.org

firstlab.webege.com

Nuclear Energy