Chemistry Worksheet. Name of Ion Metallic Ion or Nonmetallic ion? Formula. a. ions, also known as, are derived. from metals, and ions, also known as,

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1 Chemistry Worksheet Nomenclature Review Name: Block: Date: 1. Review of charges and names of ions. Use your periodic table to fill in the following table of monatomic ions. [Prerequisite reading/reference Section 3.5 (review) and Section 4.1] Name of Ion Metallic Ion or Nonmetallic ion? Formula magnesium ion potassium ion aluminum ion chloride oxide phosphide Br Sr 2+ S 2 Ba 2+ N 3 Li + 2. Fill in the blanks a. ions, also known as, are derived from metals, and ions, also known as, are derived from nonmetals. b. The names of all nonmetallic monatomic ions end with. Copyright 2016, Science Teachers at Newton South High School, Newton, MA 02459

2 3. Naming and Formula Writing for Type I Binary Compounds. [Prerequisite reading Sec. 4.1] Compounds consisting of two elements are called binary compounds. For example, aluminum oxide (Al2O3) consists of two elements, aluminum and oxygen, and is thus a binary compound. Binary compounds consisting of a metal that can only form one type of cation and a nonmetal are called Type I binary compounds; binary compounds containing metal ions that can form two or more types of cations with different charges are called Type II binary compounds. Since Type I and Type II compounds all consist of a metals plus nonmetals, Type I and Type II compounds are all ionic compounds. Elements in Group I on the periodic table can only form 1+ ions, and elements in Group II can only form 2+ ions. Additionally, zinc can only form a 2+ ion, silver can only form a 1+ ion, and cadmium can only form a 2+ ion. Group I ions, Group II ions, and zinc, silver, and cadmium ions are the ions found in Type I binary compounds, since each can only from one type of ion. a. Name the following Type I binary compounds (see the text for rules!) Formula Name Formula Name CsCl K2S NaF BaCl2 LiF Na2O Mg3P2 Li3N CaCl2 Rb2O b. Write the formulas for the following Type I binary compounds. Name Formula Name Formula sodium chloride magnesium fluoride sodium sulfide aluminum fluoride aluminum sulfide calcium oxide barium nitride potassium iodide magnesium sulfide calcium bromide

3 Chemistry Worksheet Binary Compounds 4. Naming and Formula Writing for Type II Binary Compounds. [Prerequisite reading Sec. 4.1] Type II binary compounds consist of metal ions that can form more than one type of cation, along with nonmetals. For example, iron atoms can form ions that have two different charges Fe 2+ and Fe 3+. Thus FeCl2, also known as iron(ii) chloride, and FeCl3, also known as iron(iii) chloride, are Type II binary compounds. The Roman numerals in the names simply stand for the charges of the ions. Iron(II) is the Fe 2+ ion, and iron(iii) is the Fe 3+ ion. The Roman numerals, and thus the charges, must be included in the names for Type II binary compounds to communicate which of the possible ions is present in the compound. Calling either of the above compounds iron chloride would be incorrect because there would be no way of knowing if the iron present is in the 2+ or 3+ form. a. Write the formulas for the following Type II binary compounds. Name Formula Name Formula lead(ii) sulfide lead(iv) oxide copper(ii) chloride copper(i) chloride nickel(ii) bromide tin(iv) oxide tin(ii) oxide iron(ii) oxide iron(iii) oxide gold(iii) bromide b. Name the following Type I binary compounds (see the text for rules!) Formula Name Formula Name HgS Cu2O CuO BaCl2 Ni2O PbS2 Sn3N4 FeN Fe3N2 NiO Copyright 2015, Alan D. Crosby, Newton South High School, Newton, MA 02459

4 5. Naming and Formula Writing for Type III Binary Compounds. [Prerequisite reading Sec. 4.1] Type III binary compounds contain only two elements, but both elements are nonmetals. Whereas Type I and Type II binary compounds are ionic compounds consisting of formula units, Type III are covalent compounds consisting of molecules. Because a given pair of nonmetals frequently can combine in multiple ways to form different molecules, these molecules, and thus the compounds they compose, are named using Greek prefixes. For example, nitrogen and oxygen can combine in four different ways: NO, N2O, NO2, and N2O4. The names for these molecules and their compounds are nitrogen monoxide, dinitrogen monoxide, nitrogen dioxide, and dinitrogen tetroxide respectively. a. Name the following Type I binary compounds (see the text for rules!) Formula Name Formula Name CO CO2 PCl3 SF6 N2O4 NF3 P4O10 Cl2O SO2 SO3 a. Write the formulas for the following Type III binary compounds. Name Formula Name Formula nitrogen dioxide disulfur dibromide silicon dioxide carbon disulfide tetraphosphorus hexasulfide iodine pentafluoride phosphorous pentachloride dichlorine heptoxide

5 Chemistry Worksheet Binary Compounds 6. Review Questions (Please note-if you find yourself hunting for answers on all of these questions, you probably did not read the textbook carefully enough, or were not mindful enough in completing the above exercises!) a. What is a binary compound? b. How can you tell if a compound is ionic or covalent by looking at its formula? c. Why are no Roman numerals, and no Greek prefixes, needed in naming Type I binary compounds? d. Label as an ionic compound or a covalent compound: a. Type I binary compound b. Type II binary compound c. Type III binary compound e. What do the Roman numerals in the names of Type II ionic compounds mean? f. Why are Roman numerals essential for naming Type II binary compounds? g. Which groups of elements on the periodic table form metal ions that do not require Roman numerals in their names? h. What are three additional common ions that do not need Roman numerals in their names? i. Generally speaking, where on the periodic table are the elements that form ions requiring Roman numeral in their names? j. Why are Greek prefixes used for naming covalent compounds, but not for naming ionic compounds? Copyright 2015, Alan D. Crosby, Newton South High School, Newton, MA 02459

6 k. Summarize how you can recognize Type I, Type II, and Type III ionic compounds. Phrases, rather than sentences, are fine. a. Type I b. Type II c. Type III l. Summarize how names are written from the formulas of each. Phrases, rather than sentences, are fine. a. Type I b. Type II c. Type III

Naming Simple Compounds

Naming Simple Compounds Ionic Compounds Ionic compounds consist of positive and negative ions. have attractions called ionic bonds between positively and negatively charged ions. have high melting and