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1SEDOSafety Evaluation During Operation of Fuel Cycle FacilitiesNEA CSNIWGFCSWorkshop on Fuel Cycle SafetyPast Present and FutureWilmington 1618 October 2007International Atomic Energy Agency2IAEA. #1: Rubidium has two common isotopes, . 85. Rb and . 87. Rb. . If the abundance of . 85. Rb is 72.2% and the abundance of . 87. Rb is 27.8%, what is the average atomic mass of rubidium?. PROCEDURE:. . By Sophia Bocast. What are the Physics behind an Atomic Bomb?. . The immense destructive power of atomic weapons derives from a sudden release of energy produced by splitting the nuclei of the fissile elements making up the bombs' core. The U.S. developed two types of atomic bombs during the Second World War. The first, . On your bell work . sheet, answer the following.. When . are zeros significant? . . When . do you use the fewest number of Significant Figures?. Objectives. The Structure of the Atom. Properties of Subatomic Particles. 1.c. – Students know how to use the periodic table to identify alkali metals, alkaline earth metals and transition metals, trends in ionization energy, electronegativity, and the relative sizes of ions and atoms.. From Astronomy To Biomedicine. Light and Matter .  Spectroscopy. . Generalized interactions  Radiation. . Atomic physics. . Astrophysics. . Plasma physics. . Molecular physics. . Biophysics. Ferad Zyulkyarov. 1,2. , Vladimir Gajinov. 1,2. , Osman S. Unsal. 1. , Adrián Cristal. 1. , Eduard Ayguadé. 1,2. , Tim Harris. 3. , Mateo Valero. 1,2. 14th ACM SIGPLAN Symposium on Principles and Practice of Parallel Programming. Chapter 1D. Warm Up November . 28. What is smaller, an atom or a cell? . Name and describe one element that you are familiar with on the periodic table. . When large blooms of algae die, decomposers use all the oxygen in the water to break down the dead algae. What is this a result of? . All atoms of an element have the same number of protons and the same atomic number.. Learning Goal . Given the atomic number and the mass number of an atom, state the number of protons, neutrons, and electrons.. Bohr’s model explained an unusual event. When electric current flows through a gaseous element, the gas . produces a glowing light, like a neon sign.. If this light is passed through a prism, a pattern of lines appears, with each line having a different color. The pattern depends on the element- neon has one pattern and helium another. What causes these lines and why are they always the same for a given element?. Reminder: A.S. 13.1.5-13.1.7 due . Monday 3/23/15. A.S. . 13.1.8-13.1.13 . due Tuesday . 3/24/15. WebAssign. Quantum #3 due Tuesday . 3/24/15. When a gas is heated to a high temperature, or exposed to a large electric field. I. Foundations of the Atomic Theory. A. 400 B.C. –Democritus. 1. Defined nature’s basic particles as . atoms. a. means indivisible. B. 350 B.C. Aristotle. 1. said matter was made of the 4 “elements”. 1. What is an atom’s atomic radii?. 2. What happens to atomic radii across a period? Why?. 3. What happens to atomic radii as you move down a group? Why?. Practice problems, page 144. Ionization Energy. Over the past century scientist have discovered that the atom is composed of 3 subatomic particles:. Protons. Neutrons. Electrons. Checking for understanding. Draw this diagram. Label all subatomic particles and include their charges.. In your notes…. Draw a model of an atom that best represents each component of that atom.. Foundations of Atomic Theory. Particle Theory of Matter. Democritus in 400 B.C.. Stated that nature’s basic particle was the atom (“indivisible” in Greek). .