'Isotopes' diaporamas de présentation

ESCI-430 Trace-element and isotope geochemistry Cin-Ty Lee Gerald Dickens TA: Zhengxue Li

ESCI-430 Trace-element and isotope geochemistry Cin-Ty Lee Gerald Dickens TA: Zhengxue Li. Grading scheme: 50 % Homework, quizzes, and class participation 25 % Term Paper 25 % Oral presentation of term paper Texts Faure, Isotope: Principles and applications, 3rd edition

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Negative particles

Neutral particles. Negative particles. Positive particles. Why do most of the alpha particles pass through?. 1 angstrom = 1 x 10 -10 m. Proton charge = +, mass = 1.0073 amu atomic mass units: 1amu = 1.6605402 x 10 -24 g. nucleus. Neutron charge = neutral, mass = 1.0087. Electron

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Chapter 32

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Nuclear Fission

Nuclear Fission. Historic Dates Fission Mechanism Binding Energy Liquid-Drop Model Classification of Heavy Nuclides Prompt Neutrons Delayed Neutrons. Historic Introduction. 1932: The neutron is discovered by J.Chadwick ? experiments with neutrons.

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The Atom

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Z ircons -More than ages

Z ircons -More than ages. Add-ons. Other information to be coupled with age of zircon Need to be done in-situ, so analysis can be performed on the same spot or very near; Provide additional information on physical conditions or petrogenesis of the source rocks. Add-ons to zircon ages.

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Radiation Safety Refresher Training Course

Radiation Safety Refresher Training Course

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Structure of the Atom

Structure of the Atom. Chapter 10 Pages 240 - 254. How are atoms studied?. Atoms are the building blocks of matter Atoms are too small in size to study easily Size of Earth : soda can = soda can : atom. Who studied the atom?. Studied by many scientists for centuries

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Class Starter

Class Starter. Look at the different substances and write down which substances you think are composed of elements and which are composed of compounds. . Objectives. What makes up matter? Why do atoms form bonds? What are some important interactions between substances in living things?.

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How many protons, neutrons & electrons are present in atom?

How many protons, neutrons & electrons are present in atom?. Cl. 37. -1. 17. Mass number. 37. -1. Cl. 17. charge. Atomic number. The atomic number gives the protons The mass number gives the (protons + neutrons) The charge give the (protons - electrons).

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Subatomic Particles

Subatomic Particles. 1. Subatomic Particles. Special notes on subatomic particles. In a neutral atom # of protons=#of electrons. Atoms are electrically neutral. If the number of protons does not equal the number of electrons you have a charged atom known as an ion.

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MASS SPECTROMETRY (MS)

MASS SPECTROMETRY (MS). Mass Spectrometry . MS gives an exact measure of molecular mass. An electron beam (70ev) dislodges an electron from a sample giving M + , a radical cation . A potential difference of ~10000 v accelerates the ions. Radicals are not affected.

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MINERALS

MINERALS. A MINERAL is a naturally occurring, inorganic solid, consisting of either a single element or compound, with a definite chemical composition (or varies within fixed limits), and a systematic internal arrangement of atoms. MINERALS. Useful as tools Improve quality of life

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Radioimmunotherapy

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Radiogenic Isotope Geochemistry

Radiogenic Isotope Geochemistry. Lecture 29 Introduction & Physics of the Nucleus. Radiogenic Isotope Geochemistry.

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Relative atomic mass - A r

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Ch. 2.2 - Atomic Structure

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Atoms and the Periodic Table

Atoms and the Periodic Table. All known Atoms are arranged in the Periodic Table(PT). Each type of Atom is known as an Element .There are approx 118 known elements. Columns down the way in the PT are known as Groups and Rows across the way are called Periods .

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Juggernaut Nearpod

Very Cool

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