PPT-Elements Atoms are the smallest part of an element.

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 couldnt cut the gold up any smaller That smallest piece would be an atom of gold. Bonding. p. 144-156. Remember….. There are two kinds of pure substances. Elements. Compounds. Elements. Substance that cannot be separated or broken down into simpler substances by chemical means.. . and . Periodic Table. Antoine Lavoisier. Law of Conservation of Matter: matter can not be destroyed nor created.. Dalton’s Atomic Theory. All elements are composed of atoms.. Atoms of the same element are identical. Atoms of any one element are different than atoms of another element.. Bio “Life” . +. . Chemistry “Chemical Reactions”. . =. The study of chemical reactions in living things. . Why Biochemistry?. One characteristic of living things: life depends on . chemical reactions!. & IONS. Dalton: atomic theory. Atomic Structure &. Weights. P. Table. Molecules & Compounds. CMPDS: formula, name. Molecule/Cmpd. Cmpd: metal + nonmetal. transfer of e-. metal lose & nonmetal gains . Matter. Has Mass=. The Amount . of Matter. in an Object. “Stuff” that . Everything. is made of!. Made of . Atoms. Has Volume=. Takes Up . Space. Don’t Sweat the Small Stuff!. What is the “Small Stuff” anyway?. 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.. Presented by Kesler Science. How are chemical formulas used to identify substances?. How do chemical formulas determine the number of atoms of each element using subscripts, coefficients, and parenthesis?. Atoms and Isotopes. What you need to know about Atoms . and Isotopes:. Matter. Molecules. Elements. Chemical reaction. Periodic Table. The Atom. Parts of an atom. Isotopes. Unstable isotopes. Scientists and discoveries. Atoms and Isotopes. What you need to know about Atoms . and Isotopes:. Matter. Molecules. Elements. Chemical reaction. Periodic Table. The Atom. Parts of an atom. Isotopes. Unstable isotopes. Scientists and discoveries. What is an element?. A element is a pure substance made of one type of atom. Elements are divided into metals and non-metals. Examples of non-metal elements include carbon, oxygen, hydrogen, and nitrogen. Rock, wood, air, metal, water, and animals are all matter. Matter. Elements. The various forms of matter are composed of one or more chemical elements. . An . element. is a pure substance that cannot be broken down into other substances by chemical means. . 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.. 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). DE Chemistry. Dr. Walker. Timeline. B.C.. 400 B.C. . Demokritos. and . Leucippos. . use the term ". atomos. ” . 1500's. Georg Bauer: systematic metallurgy. Paracelsus: medicinal application of minerals.