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Created by. Worked example: Finding the formula of an ionic compound. An ionic compound always has two parts. For cations that take on multiple charges (typically transition metals), the charge is written using Roman numerals in parentheses immediately following the element name. Why? The “ine” was removed and replaced with “ide.” To name a compound, the cation name and the anion named are added together. Name: _____ Naming Ionic Compounds Directions: Name the following compounds using the Stock Naming System. Practice: Predict the charge on monatomic ions. Rules for Naming Ionic Compounds Containing Polyatomic Ions: Polyatomic ions are ions which consist of more than one atom. 2) Write the anion and its charge second (on the right). For example, CuCl2 indicates a molecule where one Cu2+ cation associates with two Cl– anions to form a neutral compound. 1. CaCO 3 calcium carbonate_____ 2. To name an ionic compound, the two involved ions are both individually named. Ionic compounds are (usually) formed when a metal reacts with a nonmetal (ora polyatomic ion). CC BY-SA 3.0. http://en.wikipedia.org/wiki/Ionic_compound Naming Ionic Compounds Containing Transition Metals If an ionic compound contains a transition metal, use Roman numerals to denote which ion it is. Boundless Learning Then, we name the anion, cutting off the last syllable and adding the suffix -ide . Naming Ionic Compounds Recall that ionic compounds consist of a positively charged cation and a negatively charged anion. They have more than one element. 1. See if you need prefixes. Practice: Naming ionic compounds. Given descriptors, diagrams. For example, NaF is also known as sodium fluoride. You first write the name of the metal, lithium, and then write the name of the nonmetal, adding an -ide ending so that sulfur becomes sulfide. This system is still used, although it has been officially supplanted by the more precise, if slightly cumbersome, Stock system. With my strategy and step by step examples, you will be naming compounds like a pro in no time! Since there are no ionic charges to balance out in molecular compounds, … Naming Mixed Ionic and Covalent - Answers Name the following compounds. For example, Ca(NO3)2 is called calcium nitrate. A cationis a positively charged ion 2. Remember, they may be either ionic or covalent compounds, so make sure you use the right naming method! Most cations and anions can combine to form neutral, solid compounds that are usually known as salts. The cation is named first, followed by the anion. or scenarios, students will write and name the chemical formulas of common polyatomic ions and ionic compounds containing main group or transition metals and bases. (adsbygoogle = window.adsbygoogle || []).push({}); In chemistry, an ionic compound is a chemical compound in which ions are held together by ionic bonds. If the formula . Consult the periodic table of elements. In all cases, ionic compound naming gives the positively charged cation first, followed by the negatively charged anion. Ionic compounds are compounds composed of ions, chargedparticles that form when an atom (or group of atoms, in the case of polyatomicions) gains or loses electrons. 4. Example: The classic example is the chemical name for water, H2O, which is dihydrogen monoxide or dihydrogen oxide. This compound is therefore, copper (II) nitrate. Ionic/Covalent Compound Naming Solutions 1) Na 2 CO 3 sodium carbonate 2) P 2 O 5 diphosphorus pentoxide 3) NH 3 ammonia 4) FeSO 4 iron (II) sulfate 5) SiO 2 silicon dioxide 6) GaCl 3 gallium chloride 7) CoBr 2 cobalt (II) bromide 8) B 2 H 4 diboron tetrahydride 9) CO carbon monoxide 10) P 4 Here are the principal naming conventions for ionic compounds, along with examples to show how they are used: A Roman numeral in parentheses, followed by the name of the element, is used for elements that can form more than one positive ion. You can find metals on the left and central sections of the periodic table (e.g., Barium, Radium, and Lead), while you can find non-metals on the right side of the table. Practice: Find the formula for ionic compounds. Naming Ionic Compounds In science, it is important to have a system that we can follow in naming things. Write the formulas for the four ionic compounds that can be made by combining the cations Mg2+ and Fes+2.43 (a) (NH 4) 2 CO 3 (d) AlPO 4 (b) CaI 2 (e) AgCH 3 CO 2 CC BY-SA 3.0. http://www.chem1.com/acad/webtext/intro/int-5.html Example: FeCl3 is ferric chloride or iron(III) chloride. Its systematic name is copper (II) chloride, where copper’s oxidation number is indicated in parentheses. Ionic compounds have high melting and boiling points, and they tend to be hard and brittle. For example, nitrate ion, NO 3-, contains one nitrogen atom and three oxygen atoms.The atoms in a polyatomic ion are usually covalently bonded to one another, and therefore stay together as a single, charged unit. You might see it as a metal, and a non-metal. Naming ionic compound with polyvalent ion. http://en.wikipedia.org/wiki/Naming_ionic_compounds%23Naming_simple_ionic_compounds Molecular compounds areelectrically neutral. Start studying Naming Ionic Compounds. Here is some tips, and tricks for naming ionic compounds. Naming Molecular Compounds Molecular compounds are named using a systematic approach of prefixes to indicate the number of each element present in the compound. Review: Naming Ionic Compounds - Answers Write the formulas of the following ionic compounds (1 pt each): 1) iron (II) arsenide Fe 3 As 2 2) lead (II) sulfate PbSO 4 3) lead (IV) hydroxide Pb(OH) 4 4) copper (II) acetate Cu(C 2 H 3 O 2) 2 5) beryllium chloride BeCl 2 6) ammonium chromate (NH 4) 2 CrO 4 7) silver oxide Ag 2 O Google Classroom Facebook Twitter. Salts are composed of two ions (binary means two): ⚛ a cation (positively charged ion) ⚛ an anion (negatively charged ion) Cations can be … Transfer of Electrons from metal to nonmetal Formation of Ions Attraction of oppositely charged ions. This is the currently selected item. She has taught science courses at the high school, college, and graduate levels. Test. At first you may incorrectly attempt to name every element in the formula. Naming compounds have never been so simple! Ionic compounds consist of cations (positive ions) and anions (negative ions). Wikipedia The hypo- and per- prefixes indicate less oxygen and more oxygen, respectively. STUDY. You should know the Roman numerals for 1 (I), 2 (II), 3 (III), 4 (IV), 5 (V), and 6 (VI). CC BY-SA 3.0. http://en.wikipedia.org/wiki/ionic%20compound, http://www.chem1.com/acad/webtext/intro/int-5.html, http://en.wikipedia.org/wiki/Naming_ionic_compounds%23Naming_simple_ionic_compounds, http://en.wikipedia.org/wiki/Ionic_compound, https://www.boundless.com/chemistry/textbooks/boundless-chemistry-textbook/, Convert between the chemical formula of an ionic compound and its name. Ionic compound nomenclature or naming is based on the names of the component ions. Sodium chloride, for instance, is an ionic compound containing sodium and chlorine. For example we … Flashcards. Chapter 7 Ionic Compound Naming (Practice Quiz) (with oxidation numbers and correct subscript latex codes) The older method uses the suffixes -ous and -ic to denote the lower and higher charges, respectively. For example, Cu(NO3)2 is copper (II) nitrate, because the charge of two nitrate ions (NO3−1) is 2\cdot(-1) = -2. Positive to positive and negative to negative ionic bonds do not occur. IUPAC Naming of Salts (Binary Inorganic Ionic Compounds) Introductory Chemistry Tutorial Key Concepts. This particular resource used the following sources: http://www.boundless.com/ Naming Ionic Compounds Using -ous and -ic Although Roman numerals are used to denote the ionic charge of cations, it is still common to see and use the endings -ous or -ic. When naming ionic compounds, we always name the cation first with its full scientific name. There is no space between the element name and the parenthesis. Spell. Polyatomic anions sometimes gain one or more H+ ions to form anions of a lower charge. When you name ionic compounds, you write the name of the metal first and then the nonmetal. Since the net charge of the ionic compound must be zero, the Cu ion has a 2+ charge. Forming and Naming Ionic Compounds: Forming rules for all Ionic Compounds: 1) Write the cation and its charge first (on the left). The Roman numerals in fact show the oxidation number, but in simple ionic compounds this will always be the same as the metal’s ionic charge. You have to recognize the polyatomic ions within the formula. The one overriding requirement is that the resulting compound must be electrically neutral: therefore the ions Ca2+ and Br– combine only in a 1:2 ratio to form calcium bromide, CaBr2. Naming ionic compound with polyvalent ion. While there are higher oxidation numbers, they are less common. Most cations and anions can combine to form solid compounds that are usually known as salts. Its older name is cupric chloride. These endings are added to the Latin name of the element (e.g., stannous/stannic for tin) to represent the ions with lesser or greater charge, respectively. Salts are simple inorganic binary ionic compounds. The -ide ending is added to the name of a monoatomic ion of an element. If either the cation or the anion was a polyatomic ion, the polyatomic ion name is used in the name of the overall compound. These anions are called oxyanions. Some of the worksheets for this concept are Naming ionic compounds practice work, Naming ionic compounds work i, Csus chemistry 1ae nomenclature work mack, Since we use different methods in naming binary covalent, Ionic compound formula writing work, Naming compounds practice work, Mixed ionic covalent naming, Rules for naming and writing compounds. This notation is usually seen with metals since they commonly display more than one oxidation state or valence. When working in chemistry, it is often convenient to write a chemical in symbols. Some polyatomic anions contain oxygen. Usually, the positively charged portion consists of metal cations and the negatively charged portion is an anion or polyatomic ion. It is also sometimes called the sodium salt of hypochlorous acid. The polyatomic ion name stays the same. The cation has the same name as its element. Match. Nomenclature is the process of naming chemical compounds with different names so that they can be easily identified as separate chemicals. Naming Ionic Compounds Using -ous and -ic, Naming Ionic Compounds Using -ite and -ate, Naming Ionic Compounds Using hypo- and per-, Ionic Compounds Containing bi- and di- Hydrogen, Why the Formation of Ionic Compounds Is Exothermic, Double Displacement Reaction Definition and Examples, The Difference Between a Cation and an Anion, Compounds With Both Ionic and Covalent Bonds, Oxidation Definition and Example in Chemistry, Ph.D., Biomedical Sciences, University of Tennessee at Knoxville, B.A., Physics and Mathematics, Hastings College. Learn vocabulary, terms, and more with flashcards, games, and other study tools. When naming ionic compounds, the cation retains the same name as the element. Example: The bleaching agent sodium hypochlorite is NaClO. An anionis a negatively charged ion. Covalent or molecular compounds form when elements shareelectrons in a covalent bond to form molecules. Because no other simpler formula is possible, there is no need to name it “calcium dibromide.” CaBr2 can be named using either the Stock method or the older, classic way of naming. For example, Sodium has a +1 charge and Chloride has a -1 charge, so the ionic compound would be named Sodium Chloride. These endings are added to the Latin name of the element (e.g., stannous / stannic for tin) to represent the ions with lesser or greater charge, respectively. Generally, there are two types of inorganic compounds that can be formed: ionic compounds and molecular compounds. The net charge of an ionic compound must be zero. It is still common to see and use the older naming convention in which the prefix bi- is used to indicate the addition of a single hydrogen ion. Ions (of either variety) may contain either a single element or more than one element. begins with a metal and ends with two or three nonmetals An ionic compound is named first by its cation and then by its anion. You can use a chart to see the possible valences for the elements. Some of those ions are called polyatomic. Common polyatomic ions. “Calcium” The anion is an element (chlorine) Remove the –ine and add –ide “Chloride” Calcium is not a transition metal, so disregard step 3 Finally, write the name of the cation followed by the name of the anion. In the cases of iron and copper, the Latin names of the elements are used (ferrous/ferric, cuprous/cupric). Polyatomic ions. Naming monatomic ions and ionic compounds. Suppose that you want to name the compound that results from the reaction of lithium and sulfur. Names and formulas of ionic compounds. Therefore, the number of cations and anions in an ionic compound must be balanced to make an electrically neutral molecule. In both systems, the name of the anion ends in -ide. Thus, in an ionic bond, one ‘bonder’ must have a positive charge and the other a negative one. Naming ionic compound with polyvalent ion. When naming ionic compounds, all of the information you’ll need is on the periodic table. The positively charged ion or cation comes before the negatively charged ion or anion. The net charge of an ionic compound must be zero. But to be considered an ion, they must carry a positive or negative charge. Gravity. The anion’s name is similar to the elemental name, but the ending of the name has been removed and replaced with “ide.”. Boundless vets and curates high-quality, openly licensed content from around the Internet. When naming ionic compounds, the cation retains the same name as the element. By sticking to each other, they resolve, or partially resolve, their separate charge imbalances. A cation, which is a positively charged ion, and an anion which is negatively charged. The Roman numeral naming convention has wider appeal because many ions have more than two valences. Ions can be single atoms, as the sodium and chlorine in common table salt (sodium chloride), or more complex groups such as the carbonate in calcium carbonate. One example is the ammonium Sulfate compound in Figure 5.7. Mini Quiz Solution: Naming Ionic Compounds Name the compound CaCl2 Write the name of the cation first. Example: KNO2 is potassium nitrite, while KNO3 is potassium nitrate. Write. Identify the compound as an ionic compound first [begins with a metal and ends with nonmetal(s)]. Ionic compounds are formed of a metal (cation) and a non-metal (anion). Learn. For instance, in biology, there are rules that scientists follow in naming … In the case where there is a series of four oxyanions, the hypo- and per- prefixes are used in conjunction with the -ite and -ate suffixes. We'll learn how to name ionic compounds that have transition metals in them. These ions are named by adding the word hydrogen or dihydrogen in front of the name of the anion. This is the currently selected item. Wikipedia Wikipedia Therefore, the number of cations and anions in an ionic compound must be balanced to make an electrically neutral molecule. The name of an ionic compound also gives you information about the oxidation numbers of the elements. (When an ion consists of more than one element, we … Email. For example, K+1 is called  the potassium ion, just as K is called the potassium atom. Covalent co… Naming Ionic Compounds. 6. The anion is named by taking the elemental name, removing the ending, and adding “ide.” For example, F-1 is called fluoride, for the elemental name, fluorine. Example: Cu3P is copper phosphide or copper(I) phosphide. Naming Ionic Compounds with Polyatomic Ions The process of naming ionic compounds with polyatomic ions is the same as naming binary ionic compounds. PLAY. Dihydrogen dioxide, H2O2, is more commonly called hydrogen dioxide or hydrogen peroxide. Since some metallic elements form cations that have different positive charges, the names of ionic compounds derived from these elements must contain some indication of the cation charge. When an element forms two oxyanions, the one with less oxygen is given a name ending in -ite and the one with more oxygen are given a name that ends in -ate. CC BY-SA. Naming Compounds – Part 1 – YouTube: This video explains how to name covalent and ionic compounds. Naming Ionic Compounds 1 Naming Ionic Compounds What are the structural units that make up ionic compounds and how are they named? Naming ionics with polyatomic ions. Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. 3) Ignoring the +, drop the number of the charge of the cation down as a subscript on the second element/compound. 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