PPT-Atomic Size, Ionization Energy, & Electronegativity

1c 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. VB theory MO theory applications Comparision of VB and MO theories VSEPR theory Bond order Bond energy Bond length Bond polarit y Partial ionic character of bonds The concept of multicentre bond Electron deficient compounds Hydrogen bond I 1. . What . are the trends for ionization energy? Why do these trends exist?. 2. . As you go across a period, do elements get better or worse at attracting electrons? . Justify. . your response.. 3. 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?. Expectations: B2.2, B3.3 . 1.7 Periodic Trends and Atomic Properties. Learning Goals. By the end of this class I will…. Describe and explain periodic trends related to:. Atomic radii. Ionic radii. Ga. . Standards. Students know . how to use the periodic table to identify . trends . in ionization energy, . electronegativity. , and the relative sizes of ions and atoms.. Definition: Half . of the distance between . JW . Dobereiner. Early 1800s. Classified elements into triads based on similar properties. Ca. , . Sr. , Ba. Li, Na, K. Cl. , Br, I. J.A.R. Newlands. Law of Octaves – every 8 elements begin to repeat in patterns. Periodic table. Elements are arranged based on similarities in their properties. Dmitri Mendeleev is credited with our current periodic table. Even predicted the existence of elements that were not yet discovered(i.e. Gallium). What patterns exist on the periodic table?. Lesson Essential Question:. The Basics. The Basics. Metals, Nonmetals, Metalloids. There is a zig-zag or staircase line that divides the table.. Metals are on the left of the line, in . 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. m. etal. nonmetal. metalloid. malleable. ductile. atomic . radius. electronegativity. ionization energy. shielding. “Wolfram”, . Viza. . Arlington, 2010. Trend. What is a trend?. a pattern or direction. G. . N. Gibson, D. Smith, J. Dragan. University of Connecticut. V. . Tagliamonti. Stony Brook University. DAMOP 2016. Providence, . R. I. May 24, 2016. Funding from the National Science Foundation. Molecules in Strong Laser Fields. 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. Joshua Moody. F . Braunmüller. , M. . Hüther. , M. . Martyanov. , P . Muggli. , E. . Öz. Max Planck Institute. Gabor Demeter. Wigner Institute. A-M. Bachmann, F. . Batsch. CERN, TUM, MPP. And . the AWAKE Collaboration . 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). .