NUCLEAR CHEMISTRY SUROVIEC SPRING 2015 Chapter 19.

Slides:



Advertisements
Similar presentations
Chapter 22 – Nuclear Chemistry
Advertisements

Radioactivity Chapter 6.1. Radioactivity Comes from an unstable nucleus Can be either… Particles or Energy (as electromagnetic radiation) or Both.
CHAPTER 21 NUCLEAR CHEMISTRY. I. Ordinary Chemical Reactions A. Bond breaking, bond forming, only outer electrons of the atoms are disturbed. B. Nuclei.
The structure of nuclei Nuclei are composed of just two types of particles: protons and neutrons. These particles are referred to collectively as nucleons.
19.1Nuclear Stability and Radioactive Decay 19.2 The Kinetics of Radioactive Decay 19.3 Nuclear Transformations 19.4Detection and Uses of Radioactivity.
Nuclear Energy Radioactivity and Half-Life FissionFusion.
Chapter 4 Radioactivity and Medicine A CT scan (computed tomography) of the brain using X-ray beams.
Nuclear Chemistry & Radioactive Decay. Nuclear Chemistry Defined Changes occurring WITHIN the nucleus of an atom Atomic nuclei often emit particles or.
Atomic Symbols and Isotopes
Alpha, Beta, and Gamma Decay
Learning Targets I can name the force that holds the atom’s nucleus together I can describe the two reasons why some isotopes are radioactive. I can describe.
1.Will not take any after next Tuesday 1/13 1.Define each of these terms: You may use your notes and they do not need to be in complete sentences  Energy.
Integrated Science Chapter 25 Notes
Nuclear _____________of atom is changed Particles or energy is absorbed or emitted from nucleus Can involve one atom or multiple atoms New elements can.
Nuclear Chemistry Chapter 9.
Chapter 18.  Mass # Symbol  Element Name or symbol – Mass #  Parts of a Reaction Reactants  Products.
Nuclear Chemistry Chemistry Ms.Piela.
Nuclear Chemistry Introduction Isotopes
Objectives To learn the types of radioactive decay
NUCLEAR CHEMISTRY QUIZ.
Chapter 19 Nuclear Chemistry Marie Sklodowska Curie.
What is it to be Radioactive? Radioactive decay is the process in which an unstable atomic nucleus loses energy by emitting radiation in the form of particles.
THE NUCLEUS: A CHEMIST’S VIEW. Nuclear Symbols Element symbol Mass number, A (p + + n o ) Atomic number, Z (number of p + )
Chapter 9 Nuclear Radiation
Nuclear Chemistry “Bravo” Test 1954 – 15,000 kilotons.
Chapter 9 Nuclear Radiation
Chemistry Chapter 4 Notes
Chapter 9 Nuclear Chemistry. What is nuclear chemistry? Nuclear chemistry is all about what happens in the nucleus of an atom. In nuclear chemistry, neutrons.
Nuclear Chemistry Ch. 21. Radioactive Emissions Alpha decay – He nucleus What product is formed when radium-226 undergoes alpha decay? What element undergoes.
Nuclear Chemistry Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.Copyright © The McGraw-Hill Companies, Inc.
Nuclear Chemistry Isotopes-Review ► Isotopes are atoms of the same element that have the same # of protons but different # of neutrons or mass. X Atomic.
Chapter 15 Nuclear Radiation
Radioactivity.
Nuclear Chemistry.
Nuclear Chemistry Chapter 25. What do you think of when you hear Nuclear Chemistry?
CHAPTER 22 Nuclear Chemistry
Radiation What is it? Where does it come from?. Radiation discovered Henri Becquerel discovered an invisible, penetrating radiation emitted spontaneously.
7.1 Nuclear Reactions What are atoms made of? Which particles are found in the nucleus? What are the three types of ionising radiation? What are the three.
Gamma Decay. Radioactive Decay Alpha Decay Radioactive Decay Alpha Decay Beta Decay.
Radioactive Decay.
Living By Chemistry SECOND EDITION Unit 1: ALCHEMY Matter, Atomic Structure, and Bonding.
General, Organic, and Biological Chemistry Fourth Edition Karen Timberlake 4.2 Nuclear Reactions Chapter 4 Nuclear Chemistry © 2013 Pearson Education,
Atoms and Isotopes What are atoms, isotopes, and radioactive decay?
Types of Radioactive Decay Kinetics of Decay Nuclear Transmutations
Nuclear Chemistry. Nuclear Chemistry looks at the number of protons and neutrons in an atom Radioactive Decay = Spontaneous disintegration of a nucleus.
Nuclear Chemistry. ATOMIC REVIEW: Atomic number = # of protons # of neutrons = mass # - atomic # protons & neutrons are in the nucleus.
Nuclear Chemistry. The Atom The atom consists of two parts: 1. The nucleus which contains: 2. Orbiting electrons. protons neutrons.
Nuclear Reactions. Nuclear Symbols Element symbol Mass number (p + + n o ) Atomic number (number of p + )
NUCLEAR CHANGES What is Radioactivity?. What happens when an element undergoes radioactive decay? During radioactive decay an unstable nuclei of an isotope.
Nuclear Decay. Radioactivity The emission of high-energy radiation or particles from the nucleus of a radioactive atom.
Section 19.1 Radioactivity TYPES OF RADIOACTIVE DECAY EQ.: WHAT ARE THE DIFFERENT TYPES OF RADIOACTIVE DECAY AND HOW ARE THESE REPRESENTED IN A NUCLEAR.
Integrated Science Mr. Danckers Chapter 10.
Nuclear Reactions 1.To investigate the composition of gold foil using alpha particles (i.e. to explain the model of an atom).
Chapter 19 Radioactivity & Nuclear Energy Chemistry B2A.
Nuclear Chemistry. The study of reactions that take place in the nucleii of atoms.
Nuclear Chemistry Chapter 25 You should be able to describe types of decay and their strength.
CLICK HERE TO BEGIN! Directions: Click the term that correctly matches the definition in each question.
25.2 Nuclear Transformations > 1 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Chapter 25 Nuclear Chemistry.
Nuclear Chemistry. Review: Parts of the Atom Electron (-) Proton (+) Neutron.
Nuclear Chemistry. Radioactivity  Nuclear Reactions – reactions in which the nuclei of unstable isotopes (radioisotopes) gain stability by undergoing.
NUCLEAR CHEMISTRY Chapter 20. Nuclear Chemistry Radioactivity is the emission of subatomic particles or high- energy electromagnetic radiation by the.
Nuclear Chemistry Physical Science.
Nuclear Chemistry Chapter 9.
Chapter 10 Radioactivity and Nuclear reactions
Review Atomic Number (Z) – number of protons
Nuclear Chemistry Chapter 21.
Nuclear Chemistry Essential Question: What are the different types of radioactive decay? How does each type change the nucleus?
Nuclear Chemistry Vocabulary.
Chapter 21 Section 1 – The Nucleus Nuclear Chemistry.
Presentation transcript:

NUCLEAR CHEMISTRY SUROVIEC SPRING 2015 Chapter 19

I. Types of Radiation Radioactivity was discovered in 1896 by Bequerel and further work was done by Curie and Rutherford.

A. Isotope review X A Z Mass Number Atomic Number Element Symbol

B. Alpha decay Alpha decay occurs when an unstable nucleus emits a particle composed of 2 protons and 2 neutrons.

C. Beta decay Beta decay occurs when an unstable nucleus emits an electron

D. Gamma rays Gamma ray emission is a high energy/short wavelength electromagnetic radiation.

E. Positron emission Positron emission occurs when an unstable nucleus emits a positron

F. Electron capture Electron capture involves a particle being absorbed by instead of ejected from an unstable nucleus

II. Kinetics of radioactivity Radioactivity is the spontaneous emission by unstable nuclei of particle or electromagnetic radiation to get to a stable configuration. All radioactive decay is first order kinetics

Example A tree sample has an activity of 10.1 atoms/min of carbon. If a living tree has a decay rate of 15.3 atoms/min, how old is the tree sample?

Example Americium-241 is used in smoke detectors. Its half life is 432 years. How long will it take for 33% of the Am-241 to decay (in years)?

III. Fission Enrico Fermi tried to synthesize a new element by bombarding uranium with neutrons

A. Nuclear power Fission can be used to make a bomb, but in that case all of the energy is released at once.

IV. Nuclear Fusion Fusion is the combination of 2 nuclei to form a heavier nuclei.

IV. Radiation in everyday life Radiation absorbed dose (rad) 1 rad = 1 x J/g of material Roentgen equivalent for man (rem) 1 rem = 1 rad x RBE Relative Biological Effectiveness  -ray = 1  = 1  = 20

19_T04.JPG

A. Uses in Medicine It is immensely useful to use radioactivity in medical diagnosis

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2025 SlidePlayer.com. Inc. All rights reserved.