Radioactive Decay A series of reactions that starts with an unstable nucleus and results in a stable nucleus Transmutation- the conversion of one element.

Slides:

Advertisements

Similar presentations

CHAPTER 22 Nuclear Chemistry

Advertisements

Radioactivity and Half-Life

Hosted By Tristan Holmgren and Adam Belmnahia Radiation Transmutations Half-Life Uses and dangers of radio isotopes

Aim: What is the half-life of a radioisotope Do Now:

Nuclear Chemistry & Radioactive Decay. Nuclear Chemistry Defined Changes occurring WITHIN the nucleus of an atom Atomic nuclei often emit particles or.

I. Transmutation Transmutation - The conversion of one element to another element. All nuclear reactions are transmutation reactions except for gamma.

Atomic Symbols and Isotopes

Nuclear Chemistry. Nuclear Chemistry Objectives Students will be able to identify what radioisotopes are and why they undergo radioactivity. Students.

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.

Exponential Growth and Decay 6.4. Exponential Decay Exponential Decay is very similar to Exponential Growth. The only difference in the model is that.

Alpha, Beta, and Gamma Decay

Nuclear Chemistry Nuclear chemistry is the study of the structure of atomic nuclei and the changes they undergo.

Chapter 25 Review Solutions. Which of the following particles cannot be stopped by metal foil? a. Alphab. Betac. Gamma.

1 Chapter 9 Nuclear Radiation Copyright © 2009 by Pearson Education, Inc. 9.4 Half-Life of a Radioisotope 9.5 Medical Applications Using Radioactivity.

Nuclear Chemistry.

Atomic Stability. Isotopes Isotopes are atoms of an element that have different numbers of neutrons in their nucleus. Cu Copper – 63 OR Copper.

Nuclear Chemistry Types of Radiation Decay Equations.

1 Radioactivity and Half-Life. 2 Radioactivity An unstable atomic nucleus emits a form of radiation (alpha, beta, or gamma) to become stable. In other.

Unit 2: The Atom Half- Life. Half Life The time required for one half of the nuclei of a radioactive isotope sample to decay to atoms of a new element.

7.2 Half-Life the time it takes for half of a radioactive sample to decay is a constant rate (always the same half life for each element) Example: Strontium-90.

Radioactive Decay. I can solve half-life problems. Radioisotopes decay in a predictable way – The time is takes for half of a sample to decay is called.

Radioisotopes The nuclei of some atoms are unstable and undergo spontaneous changes called radioactive decay. One such change is called beta decay. During.

 Atomic Number  Protons + Neutrons = Atomic Mass.

Absolute Dating It’s a decaying relationship.. Radioactivity Henri Becquerel discovered radioactivity in Until then there was no way of finding.

Nuclear Chemistry Objective: To explain the process of radioactive decay using nuclear equations and half life Essential Question: How do unstable (radioactive)

NUCLEAR EQUATIONS Alpha Decay An alpha particle looks like a helium atom ( 4 2 He) massatomicmass reduces by 4,the atomic # reduces by 2 Examples: 238.

Tips on Dating. Why Date? Different methods of dating will help determine the actual age of a layer of rock or a fossil Scientists look at how much radioactive.

Absolute Dating of Rocks. Absolute Age is Radioactive Dating is is the method by which to determine the absolute age of Absolute Age and Radioactive Dating.

Uses of Radioactivity. Nuclear Fission The splitting of the nucleus of a large atom into two or more fragments The splitting of the nucleus of a large.

CHAPTER 22 Nuclear Chemistry

Radioactive Dating Chapter 10. Absolute Dating Process of establishing the age of an object by determining the number of years it has existed Absolute.

Warm-up 1. How do scientists use ‘relative dating?’ 2. Which layer is the oldest? 3. Which layer is the youngest? 4. Which layers are older than the fault.

Chapter 10 Review activity!. What type of nuclear decay produces energy instead of particles? A. Alpha B. Beta C. Gamma D. Body.

ENERGY UNIT Learning Goal #4: Understand the meaning of half-life and be able to determine graphical data relating to half-life and age of a radioactive.

Dating Rocks and Remains Radioactive Decay: Vocabulary Half-Life: The amount of time it takes for half of a radioactive isotope to decay. Radioactive.

C. Johannesson CHAPTER 22 Nuclear Chemistry II. Radioactive Decay (p ) II. Radioactive Decay (p ) I IV III II.

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

D AILY SCIENCE Write the following elements using short hand notation: 1. Helium 2. Tin 3. Zinc 4. Chlorine 5. Tungsten.

Nuclear Chemistry: Half-Life. Half Life Definition = time it takes for half of a radioactive sample to decay; describes rate of decay The stability of.

Some elements have atoms which are unstable. These atoms spontaneously transmutate from one element to another. These types of transmutations include.

Absolute Dating.

General, Organic, and Biological Chemistry Fourth Edition Karen Timberlake 4.4 Half-life of a Radioisotope Chapter 4 Nuclear Chemistry © 2013 Pearson Education,

Chapter 7.2 – Half life Science 10. Types of decay Alpha Alpha.

The Structure of the Atom Radioactivity. –Spontaneous emission of radiation by certain atoms –The structure of atomic nuclei and the changes they undergo.

© Copyright Pearson Prentice Hall Radioactivity. © Copyright Pearson Prentice Hall Chemistry Joke Q: What do you get when you put Jim Carrey in jail?

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

QOTD How do we measure the stability of an atom?.

Nuclear Equations.

Nuclear Physics and Radioactivity AP Physics Chapter 30.

Introduction to Nuclear Chemistry Chapter 19. I. Study of Nuclear Reactions Nuclear Reactions vs. Chemical Reactions Define “ Chemical Reaction”?

NUCLEAR CHEMISTRY OBJECTIVE: TO EXPLAIN THE PROCESS OF RADIOACTIVE DECAY USING NUCLEAR EQUATIONS AND HALF LIFE Essential Question: How do unstable (radioactive)

Chapter What is a nuclear reaction? 2. What are nucleons? Nuclides? Radionuclides? Radioisotopes? 3. What are the three main types of radiation?

1.3 Exponential Functions. Slide 1- 2 Exponential Function.

This is a modified true/false formative assessment. Each statement you read will be either true (T), or false (F). If true, simple write a T, if false,

Chapter 21 Section 2 Radioactive Decay Radioactive Decay.

UNIT 7 NUCLEAR REACTIONS 7.3 Calculating Half Life? May 17, 2011 DO NOW: = /4.5 = If we start with 4.5 grams of Radon-222 and over a period.

Isotopes & Radioactivity Slide Show #2. What are isotopes? Atoms that differ in the number of neutrons. All of these isotopes have the same number of.

Early Pioneers in Radioactivity _________: Discoverer of X-rays 1895 _________: Discoverer of Radioactivity 1896 __________: Discoverers of Radium and.

Nuclear Chemistry Determining Half-Life. Types of Radiation  Alpha particle (  )  helium nucleus paper 2+  Beta particle (  -)  electron 1- lead.

Unstable Nuclei and Radioactive Decay Radioactivity – spontaneous emission of radiation Radiation – rays and particles emitted from a radioactive material.

REVIEW What are the four forces in the atom? Explain them? Gravity - the weakest Electromagnetic - Attraction between + and - Strong - Keeps the atom together.

Absolute Dating.

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-

CLICK HERE TO BEGIN! Directions: Click the term that correctly matches the definition in each question.

NUCLEAR CHEMISTRY Chapter 20. Nuclear Chemistry Radioactivity is the emission of subatomic particles or high- energy electromagnetic radiation by the.

Calculating Half-Life of Radioactive Elements

CHAPTER 24 Nuclear Energy

Presentation transcript:

Radioactive Decay A series of reactions that starts with an unstable nucleus and results in a stable nucleus Transmutation- the conversion of one element into another element

Radiation Lifespan Half-life: time necessary for half of a mass of a radioactive element (parent) to decay to a stable nonradioactive (daughter) product

Practice Half-Life Iron-59 is used in medicine to diagnose blood circulation disorders. The half-life of iron-59 is 44.5 days. How much of a 2.0 mg sample will remain after days?

After 250 years, g of a radioisotope remains from a sample that had an original mass of g. What is the element’s half-life? How much of the original sample remains after 1,000 years?