PPT-Chapter 2 Atoms, Molecules, and Ions

DE Chemistry Dr Walker Timeline BC 400 BC Demokritos and Leucippos use the term atomos 1500s Georg Bauer systematic metallurgy Paracelsus medicinal application of minerals. BONDING. A guide for A level students. KNOCKHARDY PUBLISHING. 2008 . SPECIFICATIONS. INTRODUCTION. This . Powerpoint. show is one of several produced to help students understand selected topics at AS and A2 level Chemistry. It is based on the requirements of the AQA and OCR specifications but is suitable for other examination boards.. Isotopes. Isotopes. : atoms of the same element that have different numbers of neutrons. Two isotopes of an element will have the same atomic number, but different mass numbers (and atomic masses). CARBON (above right). The Building Blocks of Matter. Chapter 2. Chapter Outline. 2.1 The . Rutherford Model of . Atomic Structure. 2.2. . Nuclides and Their Symbols. 2.3 . Navigating the Periodic Table. 2.4 The . Masses of Atoms, Ions, and Molecules. 1) What happens next?. Why?. 2) How can you maintain more blue molecules on the left . and. more red molecules on the right?. DO NOW. Answer . questions #1&2 . on your worksheets.. Put in a pump that would pump the blue molecules to the left and the red molecules to the right.. MACROSCOPIC SCALE. Elements combine to make compounds.. ATOMIC SCALE. Atoms combine to make molecules, or extended structures.. What we’ll cover…. Compound Formulas. Ions. Monatomic. Polyatomic. Ionic Compounds. 13a. 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 . o. 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 . and Ions. Jim Geiger. Cem 151. Atomic Theory of Matter. The theory of atoms:. Original to the Greeks. Leuccipus, Democritus and Lucretius. (Aristotle thought they were nuts). He believed that one could divide up a piece of matter an infinite number of times, that is, one never came up with a piece of matter that could not be further divided. He suggested that everything in the world was made up of some combination of four elements: earth, fire, water, and air. The elements were acted upon by the two forces of gravity and levity. Gravity was the tendency for earth and water to sink, and levity the tendency for air and fire to rise.. Early in the 19. th. century John Dalton developed atomic theory. His theory explained the best available experimental data at that time. His theory has been modified since then with the discovery of other data, but his work was the initial ground work that we will examine first.. Dr John Mitchell. ID1004: Approaches to Reality. For Years People Wondered …. What is the World Made of?. What is Matter?. I. s Water Made of the Same Stuff as Rock?. Is Matter Continuous?. Is Matter Continuous?. For Example: If you have a piece of gold and cut it into smaller and . smaller pieces, . you would eventually reach a point where you couldn’t cut the gold up any smaller. That smallest piece would be an atom of gold.. What is the atmosphere?. Dry air is a mixture of gases. Our atmosphere is made up of the following:. 78% Nitrogen. 21% Oxygen. 1% Argon. 0.04% Carbon Dioxide . Chemicals of air consists of atoms and small molecules. There are weak forces of attraction between the molecules so these chemicals have low melting and low boiling points.. Lesson 1. (b) the concept of . monomers. and . polymers. and the importance of . condensation. and . hydrolysis. reactions in a range of biological molecules . (. c) the chemical elements that make up biological molecules . Which particles make up the mass?. How many electrons can go on each shell?. Date:. YEAR 10 CHEMISTRY SESSION. Monday, 29 June 2020. Name the 3 subatomic particles?. Protons, electrons and neutrons. Which particles make up the mass?.