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Nuclear Chemistry Mr. Skirbst Physical Science Topic 21
Nuclear Chemistry Radioactivity -
Nuclear Chemistry Radioactivity – - a release of matter and energy that changes the nucleus of an atom
3 Types of Radiation 1. Alpha particles
3 Types of Radiation 1. Alpha particles (+) 2 protons & 2 neutrons - can burn skin, but is stopped by paper
3 Types of Radiation 2. Beta particles
3 Types of Radiation 2. Beta particles (-) 1 electron & (+) 1 proton (from neutron decay) - can penetrate 3 mm of Al
3 Types of Radiation 3. Gamma Rays
3 Types of Radiation 3. Gamma Rays an electromagnetic wave (no charge) - penetrates several centimeters of Pb (lead)
3 Types of Radiation TypeAt. MassCharge
Nuclear Stability Describes the “strength” of the nucleus
Nuclear Stability Binding Energy - nuclear force that holds the nucleus together
Nuclear Stability Radioactive Decay - unstable nucleus breaks down & releases energy & matter
Nuclear Stability 2 Types of Decay: Alpha decay -releases (2P & 2N) Beta decay - releases (1E & 1P from 1N)
Nuclear Stability Decay typeat. Massat. # -4-2 same+1
Nuclear Stability Half Life: - time it takes for ½ the atoms to decay
Nuclear Stability Nuclear Notation:
Nuclear Stability Decay Series: - Illustrates radioactive decay
Nuclear Energy Fission – splitting of atomic nucleus
Nuclear Energy Fusion – combining of atomic nucleus
Nuclear Chemistry A Short Study. A Review Element – Chemical substance that cannot be divided by chemical means –All atoms of the same element have.
Radioactivity Chapter 6.1. Radioactivity Comes from an unstable nucleus Can be either… Particles or Energy (as electromagnetic radiation) or Both.
Chapter 22 – Nuclear Chemistry. Nuclear Symbols Element symbol Mass number (p + + n o ) Atomic number (number of p + )
Nuclear Chemistry. Chemical vs. Nuclear Reactions Chemical reactions involve valence electrons and atoms bonding together. Nuclear Reactions involve the.
Chapter 22 notes. Types of nuclear reactions Fission- splitting of nucleus- nuclear waste Fission- splitting of nucleus- nuclear waste Fusion- nuclei.
Unit 2 Notes – Radioactivity Mr Nelson. Facts about the nucleus Radius = cm ( cm) Radius = 1/ th of an atom Density = 1.6x10.
Unit 2 Notes – Radioactivity Mr Nelson Facts about the nucleus Radius = cm ( cm) Radius = 1/ th of an atom Density = 1.6x10.
Chapter 21: Nuclear Chemistry Chemistry 1062: Principles of Chemistry II Andy Aspaas, Instructor.
Radioactivity & Nuclear Rxns Chapter 6.1 & 6.2. Nuclear Radiation Comes from an unstable nucleus Radiation can be released as either… –Particles –or.
IV. Isotopes 2 or more atoms of the same element having the same number of protons BUT different numbers of neutrons.
Section 1Nuclear Changes Section 1: What is Radioactivity? Preview Key Ideas Bellringer Nuclear Radiation Nuclear Decay Math Skills Radioactive Decay Rates.
What is the Q-value for radioactive decay reactions? 1) Q < 0 2) Q > 0 3) Q = 0 4) sign of Q depends on the nucleus ConcepTest 31.1 Nuclear Reactions.
Nuclear Chemistry. Nuclear Symbols Element symbol Mass number, A (p + + n o ) Atomic number, Z (number of p + )
CHAPTER 22 Nuclear Chemistry II. Radioactive Decay (p ) II. Radioactive Decay (p ) I IV III II.
Nuclear Energy. Mass and energy Einstein suggested that mass and energy are related by E=mc 2 (c = 3.0 x 10 8 m/s) E: energy, m: mass, c: speed of light.
Radioactive Decay. - Alpha Decay The emission of an particle from the nucleus of an atom is called alpha decay An alpha particle is just a helium nucleus.
What are Isotopes? How are they used ? …and a song to cheer you up!
How Can We Change Lead Into Gold?. What Element is This?
CHAPTER 24 Nuclear Energy I. Radioactivity (p ) I. Radioactivity (p )
Nuclear Reactions Chapter 10. Standards SPS3. Students will distinguish the characteristics and components of radioactivity SPS3a. Differentiate among.
Nuclear Reactions Alpha, Beta, and Gamma Decay. State what is meant by alpha, beta and gamma decay of radionuclides. Identify the processes occurring.
Unit 2 Notes – Radioactivity Part II Mr Nelson. Transuranium elements & Radioactivity Transuranium elements are just elements #93-11? (anything after.
Nuclear Fission and Fusion Chapter 7.2 Mrs. Chilton.
The Nature of Matter Section 2-1 Biology 102. Chemistry Study of chemistry begins with the atom Atom – basic unit of matter Means indivisible.
Absolute Dating Chapter 3, Sec.3. Process to find the approximate age of rocks or fossils.
Science Park HS -- Honors Chemistry The ABC's (or Alpha, Beta, Gamma) of Radioactivity.
Radiation Safety Training Basic Radiation Physics Washington State University Radiation Safety Office.
Template by Bill Arcuri, WCSD Radioactivity JEOPARDY!
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Four Fundamental Forces in Nature Force – a _____ or _____ SI unit.
$$$ Review $$$ Atomic Theory Nuclear Chemistry Name the three fundamental subatomic particles of the atom. neutron, proton, electron.
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