Nuclear Chemistry Flashcards

Unit 3-part 2: Nuclear Chemistry

electromagnetic radiation (EMR) high energy particles with no mass given off by different objects photons “packet” of energy that moves through space, all types of EMR fall into one of these “packets” electromagnetic spectrum (EMS) entire range of possible energies given off my EMR Non-ionizing radiation low energy radiation, not harmful to humans, from visible […]

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Nuclear Chemistry (Notes)

Discovery of Radiation Henri Becquerel 1896 – wrapped photographic film in black paper, put uranium on top and left it in the sun – the photograph was “exposed” so he figured the uranium had absorbed and emitted sunlight – did same experiment on cloudy day…film was still exposed – concluded that uranium was emitting energy […]

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Nuclear Chemistry Review Test Questions

Radioactivity Process by which nuclei of unstable isotopes emit radiation Subatomic Particles in the Nucleus In the nucleus of an atom, there are protons (p+) and neutrons (n0) Radioisotope An unstable isotope that is subject to radioactive decay Radioactive Decay The breaking down of an unstable atomic nucleus to produce radiation and a more stable […]

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Nuclear Chemistry, Equilibrium, And Kinetics

At Equilibrium C) The forward reaction rate is equal to the reserve reaction rate A very high value of the equilibrium constant for a reaction indicates that B) Products are favored If the concentration of reactants is higher A) The reaction rate is generally higher An increase in temperature generally has what impact on the […]

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Nuclear Chemistry: Unit 5

Most chemical reactions involve The exchange or shafing of electrons which does not affect the nucleus How is nuclear chemistry different than other chemical reactions? Bc it involves changes in the nucleus Transmutation When the nucleus of one element is changed into the nucleus of a different element Which means the number of protons is […]

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Chem Ch.21 (Nuclear Chemistry)

Nuclear Reactions Transformations of atomic nuclei that can involve enormous changes in energy. Roughly 13% of electricity worldwide comes from nuclear power plants. i.e. Energy of stars and created by nuclear power plants. (908) Flashcard… Table 21.1 (912), Table 21.3 (913), figure 21.15 (933), Table 21.9 (941) Nucleons Subatomic particles that reside in the nucleus, […]

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Nuclear Chemistry and Fundamentals of Atoms (AP Chem)

Atomic Theory A theory that states: 1. Atoms are the fundamental unit of matter 2. Atoms are very small 3. Atoms are very numerous 4. There are about 110 types of atoms called elements (see Periodic Table) 5. All atoms of the same element are identical in number of protons and chemical properties 6. All […]

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Nuclear Chemistry

Niel’s Bohr • In 1913 Niels’ Bohr, a Danish physicist proposed a new model for the hydrogen atom •He proposed that the electron has certain orbits that it has to stay in that circle the nucleus •The orbits can also be called ATOMIC ENERGY LEVELS Niels Bohr •An electron can move up from on level […]

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Chemistry Exam IV-Unit 10 Nuclear Chemistry

2 Types of Nuclear Reactions 1. Radioactive Decay 2. Nuclear Bombardment (Particle Accelerator) Proton Particle ∆Z=-1, ∆A=-1 Neutron Particle ∆Z=0, ∆A=-1 Beta Particle ∆Z=+1, ∆A=0 Positron (+ electron) ∆Z=-1, ∆A=0 Alpha Particle ∆Z=-2, ∆A=-4 Gamma Particle ∆Z=0, ∆A=0 Deuteron ∆Z=-1, ∆A=-2 Tritium ∆Z=-1, ∆A=-3 Predict Stability-Magic Numbers Stable Predict Stability-Even # Protons Stable Predict Stability-Odd […]

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AP Chm 19: Radioactivity and Nuclear Chemistry

radioactivity the emission of subatomic particles or high energy waves by some nuclei of some atoms radioactive atoms which spontaneously emit subatomic particles or high energy waves phosphorescence long-lived emission of light after the absorption of light nuclide isotope which exhibits nuclear ability alpha decay (α) radioactive decay which emits an alpha particle, atomic number […]

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General Chemistry 2 Nuclear Chemistry

atomic number number of protons, charge of nucleus mass number number of protons & neutrons alpha decay 4/2 He least penetrating largest mass beta decay 0/-1 e gamma decay 0/0 y most penetrating smallest mass electron capture taking in of a decay particle rather than forming one positive emmission 0/+1 e giving off positive charge […]

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Unit 02 : Nuclear Chemistry

1) How does a nuclear reaction differ from a chemical reaction? • Nuclear reactions change an element into a completely different element AND produce massive amounts of energy. 2) In terms of atomic structure, what makes a nucleus unstable? • The ratio of protons to neutrons is wrong; it is greater than atomic number 82. […]

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Chem Unit 2: Atoms and Nuclear Chemistry

Gamma rays High energy electromagnetic waves emitted from a nucleus as it changes from an excited state to a ground energy state Positron A particle that has the same mass as an electron but has a positive charge, and is emitted from the nucleus during some kinds of radioactive decay. Fission The breaking apart of […]

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Chemistry Unit 14 Nuclear Chemistry

List 3 differences between a chemical reaction and a nuclear reaction – nuclei split – involve large energy changes -atoms are converted into other atoms What is phosphorescence Emission of light after being exposed to sunlight also “glow-in-the-dark” What uranium ore did the Curies work with Pitchblende The Curies later identified 2 previously unknown radioactive […]

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Nuclear Chemistry Test Questions

nucleon protons/neutrons in atomic nuclei/nuclide nuclide atom identified by what is in the nucleus (protons/neutrons) mass defect difference between the mass of an atom and the sum of the masses of its particles. nuclear binding energy energy released when a nucleus is formed from nucleons-causes mass defect. amount of energy needed to break apart a […]

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thermo-nuclear chemistry

thermochemistry the study of the transfers of energy as heat that accompany chemical reactions and physical changes calorimeter a device used to measure the heat absorbed or released in a chemical or physical change temperature the average kinetic energy of the individual particles joule the SI unit of heat and energy heat a form of […]

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Chapter 21- Nuclear Chemistry

Energy : Chemical vs. Nuclear -chemical energy is associated with making and breaking chemical bonds -nuclear energy is enormous in comparison -nuclear energy is due to changes in the nucleus of atoms changing them into different atoms Radioactivity -stable nucleus remains intact, but great majority of nuclei are unstable -> unstable nucleus exhibits radioactivity -the […]

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Nuclear Chemistry Quiz Test Questions

isotopes atoms of the same element that have different numbers of neutrons radioactivity the process by which an unstable nucleus gives off nuclear radiation radioisotopes an isotope that has an unstable nucleus and undergoes radioactive decay radiation energy that is radiated or transmitted in the form of rays or waves or particles radioactive decay the […]

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Chemistry Unit 6: Nuclear Chemistry

Explain how unstable nuclei releases energy. An unstable nucleus releases energy by emitting radiation during the process of radioactive decay. What is the change in atomic number with each type of radiation? Alpha Particle – Decreases atomic number by 2. Beta Particle – Increases its atomic number by 1. Gamma Ray – Does not alter […]

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Ch2 – Nuclear Chemistry

arithmetic 算術 average 一般的 beam 光線 calculate 計算 calculation (n) 估算;精算 calculator (n.10)計算機 CD/compact disk n.雷射唱片、光碟 Chemistry 化學 clone 複製的生物 code 密碼 compute (v)計算;估算 digital adj. 數位的;數字的 download v. 下載 DVD 數位影音光碟 electric (adj.) 電的,用電的 electricity n.電 electronic (adj.10)電子的 email 電子郵件 engine n. 引擎 escalator 手扶梯 experiment 實驗 fax 傳真 gasoline [名詞] 汽油 industrial 工業的 […]

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Nuclear Chemistry Questions And Answers

Willhelm Roentgen (1845-1923) discovered X-rays, a high energy form of light (1895) Henri Becquerel (1852-1909) found that uranium ores emit radiation that can pass through objects (like x-rays) and affect photographic plates (1896) Marie Sklodowska Curie (1867-1934) Marie and Pierre worked with Becquerel to understand radioactivity. Shared a Nobel prize in physics in 1903. She […]

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