11 stem odl (1)
- 1. We will start in just a while…
- 5. Why do we name objects, people, pets?
- 6. Learning Competency Recognize the formulas of common chemical substances 1.Identify the difference between a cation and anion. 2.Identify the names of some simple binary compounds 3.Recognize the importance of chemical formulas.
- 7. 1.Which of the following is the common name of NaCl? A. Sugar C. Water B. Salt D. Coffee
- 8. Title Card: What’s Your Name? Lesson 2: Formulas of Common Chemical Substance
- 9. Why is there a need to name elements and compound?
- 10. Let us review
- 12. a. Cation b. Anion c. Neutral Atom
- 13. a. Cation b. Anion c. Neutral Atom
- 14. a. Cation b. Anion c. Neutral Atom
- 15. NOTE: Ions can be made up of one atom (monoatomic) or more than one type of atom (polyatomic).
- 16. Groups or families are shown as vertical columns. There are 18 groups in the periodic table. Elements in a group have similar electronic configurations for their valence shell electrons. This is why elements in a group have similar chemical properties. 1 2 3 4 5 6 7 8
- 20. Periodic Table And Nomenclature Naming Compounds
- 21. Nomenclature Rules Rules for naming three classes of compounds: ionic compounds, binary covalent compounds & acids. What type of compound is it? COVALENT COMPOUND: Nonionic – not composed of cations & anions. Generally, only nonmetals are present. IONIC COMPOUND: Composed of cations (metals or polyatomic ions) and anions (nonmetals or polyatomic ions). ACID: Produces H+ in water. Typically the hydrogen cation is written first in the chemical formula.
- 22. 1.Rules in monoatomic ions a. for Cations • the name of the element is unchanged. • if an element can form two ions of different charges, the name, which is usually derived from its Latin name, is modified by the suffix –ic for the ion with the higher charge, and –ous for that with the lower charge. b. For Anions • the name of the element is modified by the suffix –ide.
- 23. 1.Name the following monoatomic cations: a. Zn2+ b. Mg2+ c. K+ d. Fe2+ e. Fe3+ a. Zn2+ – zinc ion b. Mg2+ – magnesium ion c. K + – potassium ion d. Fe2+ – ferrous ion or iron (II) ion e. Fe3+ – ferric ion or iron(III) ion
- 25. 2.Name the following monoatomic anions: a. Br- b. S2- c. O2- d. I- a. Br- – bromide ion b. S2- – sulfide ion c. O2- – oxide ion d. I- – iodide ion
- 27. 2. Rules in naming polyatomic ion (ionic binary compound) a. The name of a compound with two elements has two words. b. To get the first word, we use the name of the first element or the element to the left of the formula. c. To get the second word, we use the name of the second element and change the suffix to "ide" at the end of the word. example: NaCl is name sodium chloride. 1.Name the following polyatomic ion: Sodium iodide Potassium chloride Berrylium sulfide NaI - KCl- BeS
- 29. 3. Rules in naming polyatomic ion (ionic binary compound containing a metal ion with a variable charge) a. Compounds of these metals with nonmetals are named with the same method as compounds in the first category, except the charge of the metal ion is specified by a Roman numeral in parentheses after the name of the metal. b. The charge of the metal ion is determined from the formula of the compound and the charge of the anion. example: binary ionic compounds of iron and chlorine. Iron typically exhibits a charge of either 2+ or 3+ FeCl2 is named iron (II) chloride FeCl3 is named iron (III) chloride CuCl CuCl2 PbI2 PbI4 Copper (I) chloride Copper (II) chloride Lead (II) iodide Lead (IV) iodide
- 31. Importance of Chemistry Formulas Chemical Formula in Chemistry is like a shorthand used to represent the elements in a compound. The Periodic Table has elements along with the symbols. Hence to know the nature of these chemical compounds and their reactions, chemistry formulas play a vital role. It gives an idea of how a substance has formed and the proportion of elements involved in that particular reaction.
- 33. Election of Class Officers
- 37. Treasurer Janice P. Shine Patrick Joseph Emil Lou
Editor's Notes
- #22: http://www2.pvc.maricopa.edu/tutor/chem/chem130/nomenclature/ncrules.html