PPT-2011-10-10 1 ZPS scoping f bonds and electrons at the atomic scale

Part IV 41 Challenge GNR edge and Graphite vacancy Dirac fermions Ugeda et al PRL2010 Enoki et al Int Rev Phys Chem 2007 20111010 2 c e 20111010 3 A Baraldiet al. IUPAC. BOHR DIAGRAMS FOR ATOMS. TYPES OF CHEMICAL BONDS. MOLECULAR COMPOUNDS. TYPES. SIMPLE COVALENT. COMMON NAME. IONIC COMPOUNDS. SIMPLE IONIC. MULTIVALENT. POLYATOMIC/COMPLEX. HYDRATED IONIC. ACIDS. Buy this as a . periodic table poster. !. Guiding Questions. Why is the periodic table so important? . Why is the periodic table shaped the way it's shaped? . Why do elements combine? Why do elements react?. Elements with high electronegativities (non-metals) will not give up electrons. Bonds are not formed by a transfer of electrons, they are formed by sharing electrons.. Molecules are neutral groups of covalently bonded atoms. (16.4-16.6). Solution of SE for molecules is more complicated due to much larger number of electrons and multiple nuclei. SE is still not exactly solvable since more than one electron is involved. Atomic orbitals are not appropriate since multiple nuclei are involved. Electron. -. ve. charged particle. Outside of nucleus. Thomson’s discovery. Mass = 9.11 x 10. -28. g. Charge = -1.76 x 10. 8. C (coulombs). Proton. +. ve. charged particle. Inside nucleus. Rutherford’s discovery. Grand Valley State University . Lecture Presentation. Chapter . 10-3. Chemical . Bonding II: Molecular Shapes, Valence Bond Theory, and Molecular Orbital Theory. sp. 2. Atom with three electron groups around it . Advanced Chemistry. Ms. . Grobsky. Food For Thought. Rutherford’s model became known as the “planetary model”. The “sun” was the positively-charged dense nucleus and the negatively-charged electrons were the “planets”. Review & Introduction for Science 10. Vocabulary. ATOM. :. smallest particle of an element, has a neutral charge.. ELEMENT. :. made up of 1 type of atom (. eg. . Oxygen, . O. ). COMPOUND:. . a pure substance made up of 2 or more elements that are . Noble gases and diatomic elements (except bromine, and iodine). These all have only London dispersion forces. . These are very weak intermolecular forces.. They all have very low melting points, obviously since they are gases.. https://youtu.be/. hhbqIJZ8wCM. What is an Atom?. The simplest particle of an element that retains its properties.. Who is Democritus?. This Greek philosopher was among the first to suggest the existence of atoms . The structure of atoms dictate their properties. How atoms combine dictate what we see in the many . minerals. in nature. . New technologies allow us to peer ever closer at the minute structures of minerals, down to the scale of individual atoms.. is . concerned that he cannot remember all of the important information about the . different types of. chemical bonds, so he asks his . tutor, Josh, . to help him review the different types of chemical bonds prior to choosing his research topic. . Covalent Bonds. Covalent bonds:. occur between two or more . nonmetals. ; electrons are . shared. not transferred (as in ionic bonds). The result of sharing electrons is that atoms attain a more stable electron configuration.. Do not. . start drawing on the whiteboards. Have . your periodic table out. Any questions from your review guide?. How many valence electrons does sodium have?. How do you know?. How many valence electrons does chlorine have?.