PPT-Periodic Trends and Bonding

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 . and . Electronegativity. Presented by . Leticia Bonita Prince. Newcastle University 4. th. Year . MChem. Student. Aims of Today. Increase your understanding of bonding and electronegativity. Increase your spatial skills and awareness using software designed by the CCDC. Introduction to Chemical Bonding. Introduction to Chemical Bonding. Objectives:. Define . chemical bond.. Explain why most atoms form chemical bonds.. Describe ionic and covalent bonding.. Explain why most chemical bonding is neither purely covalent nor purely ionic.. IB Topics 4 & 14. Text:. Ch 8 (all except sections 4,5 & 8). Ch 9.1 & 9.5. Ch 10.1-10.7. My Name is Bond. Chemical Bond. PART 5: Giant Covalent Structures, Metallic Bonding & Physical Properties. Co = Together. The Octet Rule. The octet rule says that all atoms want to have eight valence electrons, like the noble gases.. One way that atoms can follow the octet rule is by giving and taking electrons… ionic bonding. . 9/8/15. Elements come in different sizes. Which do you think is the biggest and why?. Objective . Tonight’s Homework. To determine which element is the biggest . none. Trends in the Periodic Table. Metals. Look at the Periodic Table…. 75% of elements are metals!. Metals. They can vary a lot…. General Properties of Metals. Dense. Malleable. Ductile. Good conductors of heat and electricity. Shiny Lustre. Valence Electrons and Bonding. The number of valence electrons (electrons in the outermost energy level) in an atom of an element determines many properties of that element, including the ways in which the atom can bond with other atoms.. Molecular Shapes. VSEPR Theory. From a correct Lewis structure, we can get to the 3-D shape using this theory.. VSEPR stands for . v. alence . s. hell . e. lectron . p. air . r. epulsion.. The theory is based on the idea that e- pairs want to get as far away from each other as possible!. . and Structure. IB Chemistry. Topic 4. . Bond - A force that holds . atoms . together and . makes . them . function as a . unit.. 4.1 Ionic Bonding. An . ion. is a charged particle. Ions form from atoms or from groups of atoms by . Electrons are transferred from an atom of low electronegativity to one of high electronegativity. Anion (-) and cation ( ) formed. Opposite charges attract – called an . electrostatic force. Formula Unit. 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 . The Periodic Table Ms. Pici 2016-2017 The Periodic Table Lay out 2-28-16 Take out periodic table basics and white paper You will need scissors, a glue stick, and colored pencils Use an Analogy Calendar like the Periodic Table Section 6.1. . Development of the Modern Periodic Table. Section 6.2. . Classification of the Elements. Section 6.3. . Periodic Trends. Exit. Click a hyperlink or folder tab to view the corresponding slides.. Nature of coordinative bond. Back-bonding. Bonding of metals to . p. -systems. Valence bond and hybridization. Each bond treated independently from the environment. Resonance concept. Impossibility to explain molecular geometries.