Nuclear Chemistry

Nuclear Chemistry Objectives Students will be able to identify what radioisotopes are and why they undergo radioactivity. Students will demonstrate understanding of radioactive decay through application and graphing. Students will understand and classify nuclear reactions by the types of radiation produced.

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

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 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: 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 Packet

Chemistry I-Block: Due: Radioactive Decay Lab 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

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.

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 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.

Chemistry I-Block: Infinite Campus Update: Radioactive Decay Lab Due: Radioisotopes and Radioactive Decay 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.

Atomic Structure/Nuclear Chemistry Review

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)

Alpha (α ) Reaction 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) Reaction β particle change in mass number: change in atomic number: transmutation occur?

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

Nuclear Reactions Wksht

Nuclear Reaction Types: Review

Atomic Structure/Nuclear Chemistry Exam Monday- Atomic Structure Section Tuesday-Nuclear Chemistry Section