Date: 3-18 Topic: Ch4.4 Glen Chem.. Overview Objective Warm-up Standard ESLR Notes Classwork Homework Dispatch Summary.

Slides:

Advertisements

Similar presentations

Nuclear Chemistry.

Advertisements

Unstable Nuclei and Radioactive Decay

Unstable Nuclei and Radioactive Decay

George M. McKelvy, Ph.D.1 Chapter 4 The Structure of the Atom.

Unstable Nuclei and Radioactive Decay Objectives: 9.0 Distinguish between chemical and nuclear reactions. 9.3 Identifying types of radiation and their.

Section 4.4 Unstable Nuclei and Radioactive Decay

Unstable Nuclei and Radioactive Decay

Atomic Symbols and Isotopes

Alpha, Beta, and Gamma Decay

Section 4: Unstable Nuclei and Radioactive Decay

Nuclear Chemistry By Robert Jakubek and Michael Maki.

Average Atomic Mass Unstable nuclei and Radioactive Decay.

Radioactive Decay Radioactive Decay. Radioactive Decay: Some unstable atoms try to regain stability by losing energy. They lose energy by emitting radiation.

Nuclear Energy. Nuclear energy is all around us and can be used for medical purposes. Nuclear energy is when an atom is split and releases energy or particles.

Lesson 2: It’s Greek to Me

Radioactivity Some substances spontaneously emit radiation – radioactivity The rays and particles emitted are called “radiation”. Radioactive elements.

Chemical Reactions Involves the change of one or more substances into new substances Atoms are rearranged but their identities do NOT change The reaction.

Notes 4-5 Radioactive Elements.

Alpha Decay. Radioactive Decay Alpha Decay Radioactive Decay Alpha Decay Beta Decay.

NUCLEAR CHEMISTRY QUIZ.

Unstable Nuclei & Radioactive Decay Standard: 11d, 11e Article: 105 Mastering Concepts: 112(53-58) Terms: 105 Homework: Cornell Notes: 4.4 Section Assessment:

Chemistry Chapter 4 Notes #3 (Sec 4). Unstable Nuclei Nuclear Reactions Nuclear Reactions –Rxns that involve a change in the nucleus of an atom (most.

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.

4.4 Unstable Nuclei and Radioactive Decay Radioactive decay In the late 1890s, scientists noticed some substances spontaneously emitted radiation, a.

Nuclear Decay Notes Stability Curve Atomic number Z Neutron number N Stable nuclei Z = N Nuclear particles are held.

Nuclear Chemistry “Bravo” Test 1954 – 15,000 kilotons.

Nuclear Chemistry “Bravo” Test 1954 – 15,000 kilotons.

Radioactivity and Nuclear Energy Chapter 19 neFFc&feature=related.

Nuclear Chemistry Chapter 21.

Chapter 3 Atomic Structure. The Structure Of the Atom Particle masschargelocation Proton1 AMU +1in nucleus Neutron 1 AMU 0in nucleus Electron 0 AMU -1.

 Atomic Number  Protons + Neutrons = Atomic Mass.

Drill – 10/21 Clear desk of everything and take outline, ½ sheet of paper, and pen or pencil out.

Chapter 15 Nuclear Radiation

Nuclear Chemistry The Atom The atom consists of two parts: 1. The nucleus which contains: 2. Orbiting electrons. protons neutrons Multiple nuclei is.

Nuclear Chemistry Nuclear Reactions. Reactions Chemical Reactions- atoms want stable electron configuration Nuclear Reaction- unstable isotopes (radioisotope)

Chapter 5 Notes.  The atomic mass of an element is a weighted average mass of the atoms found in nature.  If you were to mass an oxygen atom, would.

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.

Nuclear Chemistry. Reactions Chemical Involve electrons Affected external factors (temp, pressure, catalyst) Nuclear Involve the nucleus Release WAY more.

Nuclear Radiation 9.2. The Nucleus Protons and neutrons Charge of electrons and protons – x C = e –Proton +e –Electron -e.

 Test on Friday – Make sure you are studying!!  If you got below an 85 on your test, you can come to my Knight Time… Talk to me if you are interested.

Radioactive Decay.

Nuclear Chemistry. The Atom The atom consists of two parts: 1. The nucleus which contains: 2. Orbiting electrons. protons neutrons.

Chapter 25 Nuclear Chemistry

Nuclear Radiation Half-Life. What is Radiation? Penetrating rays and particles emitted by a radioactive source Result of a nuclear reaction! –Involves.

Radioactive Decay.

TOPIC: RadioactivityTOPIC: Radioactivity & Natural Transmuations Do Now: Where on your reference table can you find radioactive particles?

Nuclear Chemistry. Nuclear Reactions Nuclear chemistry is the study of changes in an atom’s nucleus. Nuclear chemistry is the study of changes in an atom’s.

Radioactive Material Review. What determines the atoms identity?

PS-2.2 Illustrate the fact that the atoms of elements exist as stable or unstable isotopes.

Types of Radioactive Decay Kinetics of Decay Nuclear Transmutations

HomeworkHomework Read section 4.4 Answer questions 26 & 27 on page 107.

Nuclear Chemistry. The Atom The atom consists of two parts: 1. The nucleus which contains: 2. Orbiting electrons. protons neutrons.

NUCLEAR CHANGES What is Radioactivity?. What happens when an element undergoes radioactive decay? During radioactive decay an unstable nuclei of an isotope.

ICP 9/25/12 Nuclear Decay Equations. Warmup 1)What composes an alpha particle? 2)What composes a beta particle? 3)What is gamma radiation?

Integrated Science Mr. Danckers Chapter 10.

NUCLEAR CHEMISTRY (Sections 4.4, ).  Notes: Read Section 4.4 in your text. Define all vocabulary words (words in bold). For each type of radiation,

Nuclear Stability and Decay 1500 different nuclei are known. Only 264 are stable and do not decay. The stability of a nucleus depends on its neutron-to-

Nuclear Chemistry. Review: Parts of the Atom Electron (-) Proton (+) Neutron.

Unstable Nuclei and Radioactive Decay. Radioactivity (Radioactive decay) The process by which some substances spontaneously emit radiation. Radioactive.

A radioactive isotope is an atom that has a nucleus that is not stable (will change to form a nucleus of a different element). The process by which the.

9/14 Opener What should I do if I need to go to the bathroom in Miss D’s class? Check to make sure no one is in the bathroom (only one person out at.

Alpha, Beta, and Gamma Decay

Unstable Nuclei and Radioactive Decay

Alpha and Beta Decay -Both naturally occurring and human-made isotopes can be either stable or unstable -Less stable isotopes of one element will undergo.

Radiation Chp 24.

Radioactivity Radioactive decay.

Chapter 4 – The Structure of the Atom

SPARK In your notebook write down the following:

Key areas Nuclear equations to describe radioactive decay, fission and fusion reactions with reference to mass and energy equivalence including calculations.

Presentation transcript:

Date: 3-18 Topic: Ch4.4 Glen Chem.

Overview Objective Warm-up Standard ESLR Notes Classwork Homework Dispatch Summary

…relationship between unstable nuclei / radioactive decay. …alpha, beta, and gamma radiation in terms of mass and charge.

1. Effective Communicators

Title: Radioactivity

 Ch 4 handout to tomorrow  ch 4 half-sheet due tomorrow

 Ch 4 Handout  Due tomorrow

11c. … some naturally occurring isotopes of elements are radioactive, as are isotopes formed in nuclear reactions. 11d. … the three most common forms of radioactive decay (alpha, beta, and gamma) and know how the nucleus changes in each type of decay.

Radiation protection technicians use radiation measuring instruments to locate /assess the risk posed by contaminated materials. Then they decontaminate the area with high- pressure cleaning equipment and remove the radioactive materials.

How would you go about removing radioactive material?

Th ---> Ra a Name the three elements Thorium, radium, alpha

A. Unstable atoms gain stability by losing energy. They loose energy by emitting radiation “Radioactive decay”

B. Alpha radiation contains 2 protons and 2 neutrons amu=4 charge +2

C. Beta decay An atom gives off an electron amu= 1/1840 charge -1

D. Gamma decay A photon is given off no mass and no charge

E. Neutron to proton ratio must be balanced for a chemical equation Mass number and atomic number

F. …Radioactive atoms undergo enough radioactive decay to reach a stable form of the atom.

G.