PPT-Element Symbol # of protons

of neutrons of electron Atomic Mass Oxygen 8 8 16 Silicon Si 14 14 28 Aluminum Al 14 13 13 Iron 26 56 Ca 20 20 40 Bellwork Wednesday 2222012 1 Turn in Pink Bellwork. Fill out as much of RM 13 as possible. **USE. A PENCIL**. DO . NOW. . . VL: 0. ESSENTIAL QUESTIONS:. How . does the structure of an atom determine how elements are arranged. in the Periodic Table?. Application. Property. Metal. Non-metal. Colour. Metals can be polished to a high gloss. Mercury is used in the manufacture of mirrors. Some paints which are used as interior paints are lustreless.. Unit 11. The Atomic Nucleus. Identification of Three Subatomic Particles (3.5). Arrangement of Subatomic Particles (3.5). Definitions of atomic number, mass number, isotope (3.5). Three Basic Subatomic Particles . I need to:. Write a formula. And I have:. 2 nonmetals. A metal and a nonmetal. A metal and a polyatomic ion. And I will:. Write the symbol for the element in the lowest group first. (exceptions – hydrogen always comes after carbon, and halogens always come before oxygen). One of the . 114. . known . “pure” . substances. . . Listed on the periodic table.. Substance with all atoms that are alike.. ATOM. Smallest. . piece of matter that still retains the properties of that matter. Please pick up the QOTD on the half-sheet of paper up front.. Do the questions on the half-sheet of paper. PLEASE HAVE YOUR HOMEWORK READY: pages 97-100. I . will check them now. . QOTD 10/30/13. 1. a. . Matter and Atoms. Matter is anything that takes up space and has mass. There are 4 phases of matter solid, liquid, gas, and plasma.. All matter is made of atoms.. Atoms are the building blocks of matter, sort of how bricks are the building blocks of houses.. 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 Discovery of Radioactivity. Henri Becquerel (1896): . Investigated the effect . of sunlight on crystals of . uranium salts. . By chance he left sample . . resting on a . photographic plate wrapped . Element symbol is “F. e. ”. Iron. is a chemical element with symbol Fe (from Latin: ferrum) and atomic number 26. It is a metal in the first transition series. It is by mass the most common element on Earth, forming much of Earth's outer and inner core. It is the fourth most common element in the Earth's crust. Examples:. Hydrogen. Carbon. Chlorine. Titanium. Atom. Democritus (450 B.C.). If . you kept cutting a substance in half forever, eventually you would end up with an “. uncuttable. ” particle. . John Dalton (1800). Bell Work. Talk to people around you and write down anything you know about atom. Do not be shy about any idea!. Draw . an atom how you imagine it . (. 1 min. .). Do atoms have mass?. We often say “something has charge”. What does it mean to have charge?. Mass (. amu. ). Location. Electron. e. -. -1. About. 0.000544. Surrounding nucleus. Proton. p. +. +1. About 1. Inside nucleus. Neutron. n. 0. 0. About 1. Inside nucleus. Isotopes. J.J. Thomson saw that there were two different neon atoms in the cathode ray tube. Today’s Objective:. . How Do Scientist Figure Out A Numerical Age For Rocks? . Do Now. :. Using the diagram to the right what is the difference between relative dating and absolute dating? . What is a jiffy .