PPT-Electronegativity

What is electronegativity The ability of an element to attract bonding electrons to itself What does that mean What is electronegativity The ability of an element to attract bonding electrons to itself. Electronegativity is a very useful concept for predicting whether the bonding between two atoms will be ionic covalent or metallic brPage 5br G Cl G G G brPage 6br Cl Cl Cl Cl brPage 7br Cl Cl Cl G G G G G G brPage 8br LI57347ERQG57347GLSROHV5734757 The ability of an atom in a molecule to attract shared electrons to itself.. Linus Pauling. 1901 - 1994. Table of Electronegativities. Higher electronegativity. Electronegativity differences determine bond type.. Conceptual Reminders: Waves/Blackbody Radiation Energy. Example. A lamp rated at 40.0 J/sec emits violet light of wavelength 422 nm. What is the energy of the photons? How many photons of violet light can the lamp generate in 2.0 sec?. Activity. Fold your periodic table so that the f and d blocks are looped.. Determine the number of valence electrons for each remaining group (column).. Find the pattern.. Valence Electrons. Valence electrons. Electron Configuration and Periodic Properties. Electron Configuration and Periodic Properties. Objectives: . Define atomic radius and ionization energy.. Compare the periodic trends of atomic radii and ionization energy.. Behavior as . a . Function . of Optical . Electronegativity. for Semiconducting and Insulating Binary Oxides. Kristen . Dagenais. , Chemical Engineering, . UMBC. Matthew Chamberlain, Physics and Astronomy, James Madison . Higher Supported Study - Week 2 . Key Areas – Periodic Trends . The trends in . covalent radius . across periods and down groups.. The trends in . ionisation energies . across periods and down groups. . How does your sense of smell work? . If a molecule fits into a receptor site in your nose, should all things smell? Why do you think you don’t smell the molecules of O. 2. , N. 2. , or CO. 2. in the air? . Periodicity . REVISION. Elements are the simplest substances and consist of one type of atom.. They are arranged in the Periodic table in increasing atomic number.. NEW LEARNING. Grouping elements by bonding and structure – focus on Titanium. Laws of periodic table. Modern periodic law . Periodic law. The physical and chemical properties of elements are periodic . function of their atomic numbers.. The physical and chemical properties of elements are periodic . F. 2. yellow gas. very reactive. toxic . Cl. 2. green gas. very reactive. toxic . Br. 2. orange liquid. very reactive. toxic . often used as a solution in water - bromine water, Br. 2. (. aq. ). I. 2. (bring notes to show me next lesson). ;. Read pages 60 – 62 in your text book. Complete the questions at the end of each double page spread. Look at the following websites. http://www.chemguide.co.uk/atoms/bonding/electroneg.html#top. Polarity. The electronegativity. values of representative elements . in Group . 1A (1) to Group 7A (17). .. Learning . Goal . Use electronegativity to determine the polarity . of . a bond.. Electronegativity. p. olarity. CHE2060 Topic 1: Atoms, orbitals & bonding. Bond polarity & . electronegativity. Covalent bonds can be either . polar. or . nonpolar. depending on how equally. (or unequally) their e- pair bonds are shared between the 2 bonded atoms..