'Radioactive isotopes' diaporamas de présentation

Nuclear Chemistry. Radioactivity. Radioisotopes are unstable isotopes whose nuclei gain stability by spontaneously undergoing changes. These changes are accompanied by the emission of large amounts of energy. Radioactive decay is the process by which materials give off this energy.

What is a Radioactive Isotope? What is Radioactive Decay? What is Half Life? (Take notes as we discuss). Radioactive Isotopes. Radioactive elements are unstable. They decay, and change into different elements over time.

1. Radioactivity. Clip. 2. 1 . Differentiate among alpha and beta particles and gamma radiation . 2 . Differentiate between fission and fusion . 3 . Explain the process half-life as related to radioactive decay .

Chapter 17 The History of Life. Section 17-1 The Fossil Record. Fossils & Ancient Life. Paleontologists Scientists Who Study Fossils Infer What Past Life Looked Like What They Ate & What Ate Them Behavior Environment They Lived In. What They Looked Like. What They Ate.

Chapter 10 Nuclear Radiation. 10.1 Natural Radioactivity. Radioactive Isotopes. A radioactive isotope has an unstable nucleus. emits radiation to become more stable. can be one or more of the isotopes of an element. Nuclear Radiation. Nuclear radiation

Radiometric Dating. Half-life. Radioactivity. Radioactive Isotopes are unstable and emit/capture elemental particles, causing them to change over time. Parent isotope – the original radioactive element Daughter isotope – the decay product; what the parent changes into. Half Life.

TELLING TIME GEOLOGICALLY. UNCONFORMITIES. Not all the rocks that ever formed are preserved. Many rocks are subjected to weathering and erosion. Gaps in the geologic record exist. These gaps are termed UNCONFORMITIES . They occur when erosion has removed rocks or none were deposited.

Fundamentals for Faculty. Andrea Deaton, CRA Executive Director Office of Research Services 325-4757 adeaton@ou.edu. RESEARCH POLICIES AND PROCEDURES. An Overview. Animal Use & Care Conflict of Interest Consortia Cost Sharing Ethics in Research Export Controls F&A Costs

Evolution. 1859 - Darwin Writes On The Origin of Species (Two BIG Ideas). Idea 1: Tree Thinking (This is the Theory of Evolution). “The affinities of all the beings of the same class have sometimes been represented by a great tree. I believe this simile largely speaks the truth.”

Bombardment. Lesson Objectives: Describe what is meant by a thermal neutron Write nuclear equations involving neutrons Explain the two ways in which radiopharmaceuticals can be made . Cyclotron. Magnetic field created. D electrodes (or ‘dees’). Radioactive source releases protons.

Chapter 13 : Nuclear Chemistry. Radioactivity Nuclear Equations Radiation Detection Half-Life Medical Applications Radiometric Dating Fission & Fusion. -. -. -. +. +. +. Isotopes of Hydrogen. Isotopes = Atoms of the same element but having different masses. 1 1. 2 1. 3

21.3 – Absolute-Age Dating. Objectives describe how scientists date rocks and other objects using radioactive elements Explain how scientists can use certain non-radioactive material to date geologic events

OGT TYPE QUESTIONS. Science. Stars are able to shine for billions of years. To shine, they must be able to produce massive amounts of energy. What is the main process taking place inside of a star in order for the star to produce and release energy?.

Chapter 25.2 The Fossil Record. Dion Kevin, Luke Leary, Crayton Bowie AP Biology 3 rd /4 th. Overview. The Fossil Record Crayton How Rocks and Fossils are Dated Dion The Origin of New Groups of Organisms Luke. The Fossil Record. Provides a window into the past

Isotopes. 1. Carbon-12 and Carbon-14 have a different number of . Protons Neutrons Both Neither . Radioactive Isotopes. 2. Which statement is true about an isotope’s half life?. Isotopes of the same element will have the same half life.

Introduction to Biochemistry. Review of Chemistry. Matter. Chemical changes in matter are essential to all life processes. Matter : Anything that occupies space and has mass. Mass: The quantity of matter an object has. MASS. WEIGHT. States of Matter. What are the 3 states of matter?.

Quia – PARTS OF NUCLEAR REACTOR – Vocab from game SAT REVIEW BOOK: P. 336 Methods of Detection P. 335 Nature of Radioactive Emissions Writing Nuclear Equations Solving Half Life problems Differentiating between Decay, fission and fusion Benefits and Harm of using Radioactive Isotopes.

The aftermath. The atomic bomb. The atomic bomb changed the modern world. The Americans dropped two atomic bombs on the Japanese cities of Hiroshima and Nagasaki. The two bombs both atomic, however they did use different materials. Little boy used uranium. Fat man uses plutonium. Little boy.

Nuclear Reactions vs. Normal Chemical Changes. Nuclear reactions involve the nucleus The nucleus opens, and protons and neutrons are rearranged The opening of the nucleus releases a tremendous amount of energy that holds the nucleus together – called binding energy

Daily Practice 10/13/09. What could you do different this quarter to improve your grade vs. 1 st quarter? What should you do if you miss an assignment? How many days do you have to complete it? Who’s responsibility is it to make up tests/quiz/assignments?