Chem 1010, Week Four Notes, Anatomy of the Atom
Chem 1010, Week Four Notes, Anatomy of the Atom CHEM 1010
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This 2 page Class Notes was uploaded by Chase Bobier on Friday February 5, 2016. The Class Notes belongs to CHEM 1010 at Middle Tennessee State University taught by Tammy J Melton in Fall 2015. Since its upload, it has received 12 views. For similar materials see Introductory General Chemistry I in Chemistry at Middle Tennessee State University.
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Date Created: 02/05/16
Chase Bobier Chemistry 1010 Notes Week 4 Important Terms Things You Need to Know Definition of the Atom and Intro to Isotopes Atoms are the fundamental part of an element. In other words an atom is the absolute smallest particle that still has the chemical properties if its respective element. Anatomy of an Atom The center of the atom is called the nucleus. The nucleus of the atom is made up of protons (which are positively charged) and neutrons (which carry no charge), and contains virtually all of the atoms mass. Electrons (negatively charged particles) zoom around the nucleus in specific orbits, sometimes called shells. Now, despite all of these things being packed into an atom, they are mostly made up of void space. Atoms are so incredibly small that they have to have their own unit of measurement, known as the Atomic Mass Unit, AMU for short, and abbreviated as u. Protons weigh roughly 1 AMU, neutrons also weigh roughly 1 AMU, and electrons weigh 0.00054 AMU. In this course the electron will be treated as though is has no mass. Functions of the different particles. The number of protons in the nucleus tell you what the element is. The total number of electrons tells you the isotope The valence electrons tell you how it reacts to other elements. The neutrons keep the atom stable by absorbing some the magnetic force of the protons.
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