Nuclear Chemistry

Apex PS Chapter 24 Vocabulary Nuclear Chemistry

alpha particle a type of nuclear radiation consisting of two protons and two neutrons beta particle a high-speed electron or positron emitted in the decay of a radioactive isotope gamma ray high-energy radiation that has no electrical charge and no mass, half life the period of time in which half of a radioactive substance decays […]

Unit 16 nuclear chemistry

Nuclear reaction A reaction in which the nucleus of an atom is changed affecting the identity of that element What are some differences between chemical reactions and nuclear reactions? Elements may be changed in a nuclear reaction but are only rearranged in a chemical reaction What is the strong nuclear force? The force that holds […]

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 […]

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 […]

TOPIC 4: Chapter 21 — Nuclear Chemistry

nuclear reaction a reaction that affects the nucleus of an atom radioactive decay the disintegration of an unstable atomic nucleus into one or more different nuclides, accompanied by the emission of radiation, the nuclear capture or ejection of electrons, or fission alpha particle a positively charged atom that is released in the disintegration of radioactive […]

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 […]

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 […]

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 […]

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 […]

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, […]

Nuclear Chemistry Review

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 […]

Nuclear Chemistry Crossword

Chernobyl site of 1986 nuclear disaster gamma decay nuclear radiation that has no mass and no charge half life the time required for half of a sample of a radioactive isotope to break down by radioactive decay to form a daughter isotope alpha the type of radiation that can be blocked with a sheet of […]

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 […]

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 […]

nuclear chemistry in our world today

nuclear fission (splitting; energy released) The splitting of an unstable nucleus into two or more lighter more stable nuclei and releasing energy. nuclear fusion (combining) The combining of two lighter nuclei into one heavier nucleus resulting into energy. What is the heavier nucleus that is created in fusion? helium The two isotopes of hydrogen called […]

Nuclear Chemistry

nuclear reactions they are a result of interactions in the nucleus with protons and neutrons nuclear chemistry deals with (blank) the nuclei of atoms breaking apart atoms are continuously undergoing (blank) decay radioactive decay nucleus spontaneously breaks down into a lighter nucleus particles undergo radioactive decay in order to achieve (blank) stability in the nucleus […]

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 […]

Nuclear Chemistry: Radioactivity

Atomic nuclei are made up of Protons and Neutrons Protons and neutrons are collectively called nucleons Nuclide An atom in nuclear chemistry, identified by the number of protons and neutrons in the nucleus How to identify a nuclide 1. Name of element and mass number (nucleons in nucleus) How to identify a nuclide 2. Isotopic […]

Nuclear Chemistry

nucleon a proton or neutron nuclide An atom that is identified by the number of protons and neutrons in its nucleus nuclear strong force The force that holds together the protons and neutrons in the nucleus radioactivity Process by which certain unstable atoms or elements undergo spontaneous disintergration, or decay, in an effort to attain […]

Nuclear Chemistry

Fission The splitting of an atomic nucleus to release energy, N+E1=E2+E3+Energy Fusion Elements combine to form one larger element releasing energy, E1+E2=E3+Energy Alpha radiation 4/2 He, changes atomic number by +2, mass number by +4 Beta radiation 0/-1e, changes atomic number by +1, mass number by 0 Gamma radiation Y photon, changes nothing positron emission […]

Nuclear Chemistry

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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