"Isotope" Essays and Research Papers

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Isotope

Experiment #: 1 Date: September 18, 2013 Title: Isotopes of Paperclipium Purpose: To determine the isotopic composition of the element, paperclipium. Background Information: Isotopes are atoms of the same element with the same proton number but different mass number; that is, the number of neutrons differ. Isotopes of the same element have the same electronic configuration as they have the same number of electrons. This accounts for the fact that their chemical properties are the same, as the...

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Radioactive Isotopes

Radioactive Isotopes An isotope is one of two or more atoms with the same number of protons, and position in the periodic table, but different number of neutrons and physical properties. Isotopes have an unstable nucleus that decay suddenly by a release of nuclear electrons and radiation. This essay will be discussing one of the applications and uses of the radioactive isotopes, and it will also state one problem that radioactive isotopes can address. The radiation characteristically...

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Radioactive Isotope

REVIEW VOCABULARY REVIEW radioactive isotope is an isotope whose nucleus tends to release particles, radiant energy, or both; radioactive dating is a technique for determining the age of a material by measuring the amount of a particular radioactive isotope the material contains. radioactive decay is the release of particles, radiant energy, or both by a radioactive isotope half-life is the time it takes for one-half of any size sample of a particular isotope to decay. microsphere is a spherical...

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Radioactive Isotopes

Radioactive Isotopes Radioactive isotopes are any of several species of the same chemical element with different masses whose nuclei are unstable and dissipate excess energy by spontaneously emitting radiation in the form of alpha, beta, and gamma rays. Every chemical element has one or more radioactive isotopes. More than 1,000 radioactive isotopes of the various elements are known.. Approximately 50 of the isotopes are found in nature; the rest are produced artificially as the direct products...

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Atomic Dating Using Isotopes

Lab Report Lab Report Atomic Dating Using Isotopes Answer the following questions about the results of this activity. Record your answers in the boxes. Send your completed lab report to your instructor. Don’t forget to save your lab report to your computer! Reference: Isotope Half-Life Chart Isotope | Product | Half Life | Carbon-14 | Nitrogen-14 | 5730 years | Potassium - 40 | Argon - 40 | 1,280 million years | Rubidium - 87 | Strontium -8 7 | 48,800 million years | Thorium...

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Half Life of Radioactive Isotope

the symbol t1/2.Different radioisotopes have different half-lives. The amount of radioactive isotope remaining can be calculated using the equation, ln [ (A)0 / (A) t1/2 ] = kt1/2 , or, rearranged: ln 2 = kt1/2. A sample data set was provided due to safety concerns. Using the data set, a half-life of 14.46 days was calculated using graphical linear regression analysis. Introduction: Unstable isotopes of certain elements spontaneously disintegrate. Their nuclei discharge particles or energy...

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Bean Bag Isotope: Abundance and Atomic Mass Lab

simple, it was revolutionary. Scientists became able to study the actual structure and mass of atoms after the discovery of radioactivity. Soon, isotopes were discovered, as atoms of the same element which have been built up to have different masses. Purpose The purpose of this lab is to investigate the mass properties and relative abundance of isotopes for the “bean bag” element (symbol, Bg), and to calculate the atomic mass of this element. Equipment and Materials Balance centigram (0.01-g...

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post lab bean bag isotopes

simple, it was revolutionary. Scientists became able to study the actual structure and mass of atoms after the discovery of radioactivity. Soon, isotopes were discovered, as atoms of the same element which have been built up to have different masses. Purpose The purpose of this lab is to investigate the mass properties and relative abundance of isotopes for the “bean bag” element (symbol, Bg), and to calculate the atomic mass of this element. Equipment and Materials Balance centigram (0.01-g...

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Isotopes, sub-atomic particles and relative atomic mass

Isotopes, sub-atomic particles and relative atomic mass Sub-atomic particles A subatomic particle is a particle smaller than an atom: it may be elementary or composite. In 1905, Albert Einstein demonstrated the physical reality of the photons, hypothesized by Max Planck in 1900, in order to solve the problem of black body radiation in thermodynamics. In 1874, G. Johnstone Stoney postulated a minimum unit of electrical charge, for which he suggested the name electron in 1891. In 1897, J. J. Thomson confirmed...

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Atomic Models

in shells Isotopes and Radioisotopes • Atoms of the same element that have different numbers of neutrons are called isotopes. • Due to isotopes, mass #s are not round #s. • Li (6.9) is made up of both 6Li and 7Li. • Often, at least one isotope is unstable. • It breaks down, releasing radioactivity. • These types of isotopes are called radioisotopes Q- Sometimes an isotope is written without its atomic number - e.g. 35S (or S-35). Why? Q- Draw B-R diagrams for the two Li isotopes. ...

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