PPT-Structure of Atoms

Physical Science Chapter 4 Section 2 State Standards CLE320212 Describe the structure and arrangement of atomic particles What is an Atom The three main components of an atom are distinquished. 7.3 in your textbook. How atoms combine. Atoms with a full valence shell are very stable . Only the Noble gases are considered stable and therefore unreactive. Elements that have unfilled valence shells combine with other elements. . Rutger M. T. Thijssen. Van der Waals - Zeeman Instituut voor Experimentele Natuurkunde. Abstract. In Amsterdam We have recently produced the first two-dimensional lattice of magnetic microtraps for ultracold atoms based on patterned magnetic films [1]. Ultracold rubidium atoms are transferred to hundreds of individual microtraps, each cloud hovering 10 micrometers above the chip surface and separated by ~20 micrometers. We are currently investigating highly excited Rydberg states of the atoms, used to mediate long-range interactions between neighbouring microtraps. This could allow entanglement of mesoscopic ensembles of atoms and paves the road toward quantum information processing with neutral atoms. We have built a dedicated laser system using 780 nm and 480 nm narrow-band diode lasers stabilised to a two-photon electromagnetically induced transparency resonance in a Rubidium vapour cell. We can excite Rydberg states from n=19 up to n~100. We have used this system to excite and image Rydberg atoms in ultracold rubidium gas confined in a surface magneto-optical trap. We are now studying the influence of the nearby (magnetic and conducting) chip surface on the Rydberg excited atoms. . Section 4.2. Objectives. State the three . subparticles. of atoms. State the charges of the . subparticles. Describe the composition of an atom. Atom. Fundamental particles which make up matter. The smallest particle of an element that retains (keeps) its identity in a chemical reaction. Andres Blass & Yuri . Gurevich. The Reserve. An ASM requires a Reserve of elements that can be imported into the set of currently used elements. In previous talks this was defined as a “. naked set. a Record . Power Density. Alfred . Hubler. , Department of Physics, University of Illinois at Urbana-Champaign. CNLS Seminar, . Los . Alamos National Lab, July . 30. th. , . 2013. Nano. capacitor arrays with high energy density . How many atoms?. The symbol for an atom is either one capital letter, or a capital letter followed by a lower case letter. . For example:. F is the symbol for Fluorine. Br is the symbol for Bromine. Chemistry. Learning Goals . To be able to . explain and draw atomic structure. Elements. Elements are the . building blocks. of all . matter. on Earth. Elements are made up of . atoms. Differences in . Non metals and Metalloids. A non metal is an element that is not a metal and does not have properties of metals. A metalloid is an element that is not a metal but it is similar to a metal.. Physical properties of nonmetals: Most nonmetals are poor conductors of electric current and heat. Solid nonmetals tend to be dull and brittle.. C2 1.1 Chemical bonding. Key words:. A . compound. contains two or more elements which are chemically combined. Covalent. bonding – sharing electrons. Ionic. bonding – transferring electrons. Chemical bonding: . Presented by Kesler Science. How are chemical formulas used to identify substances?. How do chemical formulas determine the number of atoms of each element using subscripts, coefficients, and parenthesis?. Atoms. . are the smallest unit of matter. . Matter. . is anything that has mass and takes up space. . A . ball is matter, water is matter, even the air you breathe is matter!. What is an atom. ? (cont.). Please check your headphone and microphones and adjust them for sound levels. Check your audio settings by running the Audio Setup Wizard: either press the icon in the 'Audio and Video' panel, or navigate to Tools > Audio > Audio Setup Wizard and follow the on-screen instructions.. Atoms are composed of protons, neutrons and electrons. These subatomic particles are charged….. Atoms make elements… Elements can’t be broken down into anything simpler. . Examples:. Carbon= C. Introduction I. Physical . properties of . solids are largely influenced by . the structures. The . larger the degree of association is, . the . less volatile is the . compound:. WCl. 6 . (. b.p. .: 286 .