Radiometric dating assignment answers
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God has ensured the accurate recording and preservation of His eyewitness account of the earth’s history, which Jesus Christ endorsed repeatedly during His earthly ministry.
If you have any questions about the lesson materials or assignments, post them to our online discussion forum (not e-mail). While you are there, feel free to post your own responses if you, too, are able to help out a classmate!
Name: ______________________________________ Date: ________________________ Lab 8 – Radiometric Dating Part I – Nuclear Decay Vocabulary: alpha particle, atomic number, beta particle, daughter product, gamma ray, isotope, mass number, nuclear decay, positron, radioactive, subatomic particle Prior Knowledge Questions (Do these BEFORE using the Gizmo.) The chart below gives the locations, charges, and approximate masses of three subatomic particles. Gizmo Warm-up While most atoms are stable, some are radioactive, which means that they have a tendency to undergo spontaneous nuclear decay.
However, to read any clock accurately we must know where the clock was set at the beginning.
It’s like making sure that an hourglass clock was set with all the sand in the top bowl at the beginning.
Carbon-14 is a radioactive with a half life of about 5700 years. On average it is 250 US dollars CONTENTS INTRODUCTION HOW CARBON-14 IS MADE DATING A FOSSIL OCURRENCE OF CARBON -14 APPLICATIONS THE OTHER THING BY WHICH DATING IS DONE USING RADIO CARBON UNCERTAINTY IN CARBON DATING COST TO DATE RADIO CARBON CONCLUSION INTRODUCTION Carbon dating is a radiometric dating method that uses the naturally occurring radioisotope carbon-14 (14C) to determine the age of carbonaceous materials up to about 60000 years.
The technique was developed by Willard Libby and his colleagues in 1949.during his tenure as a professor at the University of Chicago.
Access this lesson's reading by clicking on the Library Resources in Canvas, then clicking on the "E-Reserves" link. 94-95, "Postlab Problem." Record all of your work in a word processing document.
When you have completed this activity, you will be asked to submit your answers electronically by copying and pasting your answers into an online submission form included in module 8 of Canvas.
The mass number of an atom is equal to the sum of protons and neutrons in the nucleus. On the Gizmo, check that Alpha decay and Uranium are selected. Click Play ( ) and then click Pause ( ) when the alpha particle is clearly visible. Activity A: Alpha decay Get the Gizmo ready: • Click Reset ( ). Question: How does alpha decay change the nucleus of a radioactive atom? Predict: As you observed in the warm-up activity, an alpha particle consists of two protons and two neutrons. According to your equation, what isotope remains after the alpha decay of uranium-238? Write an equation for the alpha decay of polonium, and then use the Gizmo to check your answer. What happens to the decaying neutron during beta decay? What is emitted from the nucleus during beta decay? What is the mass number and charge of the emitted particle? Predict: During beta decay, a neutron is transformed into a proton and an electron (the beta particle), which is emitted. Introduction: A positron is a type of antimatter that is equivalent to an electron. What happens to the decaying proton during positron emission? What is the mass number and charge of the emitted positron? Predict: During positron emission, a proton is transformed into a neutron and a positron, which is emitted. Fill in the first set of boxes with the mass number and atomic number of the absorbed electron. What isotope is produced when tungsten-179 absorbs an electron? Radioactive atoms change by emitting radiation in the form of tiny particles and/or energy. Note: The clicking sound you hear comes from a Geiger counter, an instrument that detects the particles and energy emitted by decaying radioactive atoms. Be sure that User chooses half-life and Random decay are selected. Select the TABLE tab and record the number of radioactive atoms at each given time below. Analyze: What pattern, if any, do you see in your data? Revise and repeat: Use your data from #4 above to fill in the first line of the data table below. Calculate the average number of radioactive atoms for each time.Tags: Adult Dating, affair dating, sex dating