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Module 15 Lesson 2 Practice Activity Radioactive DatingAuthor: Chris Bires, revised 3/2012Simulations at Introduction:Dead things decay into simpler molecules. Radioactive particles decay. Is it the same kindof decay? What does it mean when a substance is radioactive? In this simulation, you will investigate theconcept of half-life. Define These Words:(use your notes, your book, or the internet),1.Neutron- The neutron is a subatomic particle, with no net electric charge2.Isotope- Each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but not in chemical properties; in particular, a radioactive form of an element3.Radiocarbon Dating-a method for determining the age of an object containing organic material by using the properties of radiocarbon, a radioactive isotope of carbon 4.Half-Life- is the time required for a quantity to reduce to half its initial value5.Decay (as used in half-life)- Change of an element into a different element, usually with some other particle(s) and energy emitted