PPT-Who Am I? Non-metal, halogen family, atomic mass 35

Chlorine 25 electrons transition element Manganese Gas 48 neutrons Krypton Period 2 atomic mass 11 Boron Nonmetallic period 3 atomic mass 32 Sulfur 26 protons period 4 transition element. The most reactive of these gases are chlorine monoxide ClO bromine monoxide BrO and chlorine and bromine atoms Cl and Br These gases participate in three prin cipal reaction cycles that destroy ozone Cycle 1 Ozone destruction Cycle 1 is illustrated Lab no. 6. In . analytical chemistry. , . Atomic absorption spectroscopy. (AAS). . is a technique for determining the concentration of a particular metal . element. . (e.g. Fe, Cu, Al, Pb, Ca, Zn). THINK ABOUT IT – answer on your warm-up sheet or scratch paper. W. hat are the 3 main groups on the periodic table?. What are the 3 main parts of an atom?. You need to get . 3. different . color pencils. Halogen. Tungsten filament. Halogen glass. Encased in a glass quartz bulb. 3200 k. Information about pertinent light sources from . wikipedia. : . An . incandescent light bulb. , . incandescent lamp. #1: Rubidium has two common isotopes, . 85. Rb and . 87. Rb. . If the abundance of . 85. Rb is 72.2% and the abundance of . 87. Rb is 27.8%, what is the average atomic mass of rubidium?. PROCEDURE:. All atoms of an element have the same number of protons and the same atomic number.. Learning Goal . Given the atomic number and the mass number of an atom, state the number of protons, neutrons, and electrons.. The pores can be sealed (closed-cell foam), or they can form an interconnected network (open-cell foam).. The defining characteristic of metal foams is a very high porosity: typically 75-95% of the volume consists of void spaces.. . Purpose of this course – understanding the diagram below:. Fujimor. i. , Electronic structure of metallic oxides: band-gap closure and valence control, . J. . . Phys. Chem. . Solids . 53. (1992) 1595–1602.. Pre-AP Chemistry. Charles Page High School. Stephen L. Cotton . Section 4.1 Defining the Atom. The Greek philosopher . Democritus. He believed that atoms were . indivisible. . and . indestructible. Dalton’s Atomic Theory. . Purpose of this course – understanding the diagram below:. Fujimor. i. , Electronic structure of metallic oxides: band-gap closure and valence control, . J. . . Phys. Chem. . Solids . 53. (1992) 1595–1602.. Composition of Substances and Solutions Atomic Mass and Formula Mass; Mole & Molar Mass; Percent Composition of Compounds; Determination of Empirical & Molecular Formulas; Molarity Other Units for Solution Concentrations Structure Of An Atom. Parts. Found in Nucleus. Protons . Neutrons. Found in shells or orbits. Electrons. Protons. Found . in. the . nucleus. Positively. charged. Determines. the . identity. Daltons Atomic Theory. 1. All elements are composed of tiny . indivisible. particles called atoms.. 2. Atoms of the same element are identical. The atoms of one element are different from the atoms of another element.. Requirements of casting alloys:. 1. . They must not tarnish or corrode in the mouth. ;. . 2. They must be sufficiently strong for intended purpose. .. . 3. They must be compatible ( nontoxic ,not allergic.