Ionic compounds are named by stating the cation first, followed by the anion. ex) CuO ---> copper (II) oxide. Last Updated: February 5, 2020 When you name ionic compounds, you write the name of the metal first and then the nonmetal. The charge is determined by the number of anions with which it combines, which is indicated by the subscript that follows the anion as well as the valency of the anion. We know ads can be annoying, but they’re what allow us to make all of wikiHow available for free. Consult the periodic table of elements. If the anion has "-ide" in its name, it has no oxygen atoms. If you try that with Group 5,6,7 elements, you will find the pattern (-3, -2, -1) for their charges. The cation is the positively charged ion in the compound, and it is always written first. For example, the name of a compound formed by ferric iron would begin with iron(III) while one formed with ferrous iron would begin with iron(II). References. For example, in an ionic compound, “Phosphorus” becomes “Phosphide” and “Iodine” becomes “Iodide.”. For the non-metal (the second element in the formula) write the name as it appears on the Periodic Table and then replace the ending with ide. Or sulfide? Naming Ionic Compounds Using -ous and -ic . Ionic compounds are formed of a metal (cation) and a non-metal (anion). Another type of bonding occurs when atoms with a net charge are electrostatically attracted to atoms or molecules with the opposite charge. This chemistry video tutorial explains how to name ionic compounds. ", "It was great and helped me do my homework.". For help naming transition metals, read on! Anions typically belong to groups 15, 16, or 17 on the periodic table. Transition metals take a little more work to name in ionic compounds, since their oxidation numbers (or their charges) are constantly changing. Naming Ionic Compounds with Transition Metals. Examples: (See page 195, Table 2, for more examples) Notice that the NAME of the ion has Roman Numerals in round brackets after the name of the metal to indicate which ionic charge it has. Then, identify the anion and write down its symbol and charge. You can use this information to calculate the metal’s charge. When you name ionic compounds, you write the name of the metal first and then the nonmetal. Ionic compounds contain a metal and a nonmetal. Write the name of the cation, and then write the name of the anion, changing the ending to "-ide" if it's a single element and leaving it as it is if it's a polyatomic ion. Can you clarify, please? 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. Naming Ionic Compounds Containing Transition Metals If an ionic compound contains a transition metal, use Roman numerals to denote which ion it is. The cation is the positively charged particle in an ionic compound, which means it's metallic. Sulfite is sulfur dioxide, or SO2. Before you start this video, it is helpful to know how to name an ionic compound based on its chemical formula. wikiHow is where trusted research and expert knowledge come together. Ionic compounds consist of cations (positive ions) and anions (negative ions). Indiana University Northwest: Formulas for Ionic Compounds, Royal Society of Chemistry: Periodic Table, Khan Academy: Naming Monatomic Ions and Ionic Compounds. For example, K +1 is called the potassium ion, just as K is called the potassium atom. 30 seconds . Steps Basic Ionic Compounds. article did a great job in creating this with simple, but very understandable, steps. Support wikiHow by I am completely lost on how to name ionic compounds, and how to write the formulas. Ammonia itself is neutrally charged. Chemical compounds are named systematically according to the guidelines given by the International Union of Pure and Applied Chemistry (IUPAC). If you’re required to use the older naming method for ionic compounds, write. SURVEY . When naming ionic compounds, the name of the cation always comes first. By using this service, some information may be shared with YouTube. Remember to only use the Roman numeral when you're writing out the ionic compound’s name and not when writing the formula. answer choices . What is the diffence between ide and ate? In many high-school- or college-level chemistry assignments, the metal’s charge will be provided for you. Atoms can form molecules by sharing electrons, which is called covalent bonding. CuO2. Most cations are monoatomic (consist of only 1 atom that has lost electrons to become positively charged) metal ions. MgCl 2 = Magnesium chlor ine = Magnesium chlor … For example, KCl, an ionic compound that contains K+ and Cl- ions, is named … Steps to Naming Covalent Compounds First, identify the elements present. In these compounds, the cation will be the first element written.. When writing the name of ionic compounds the name of the metal is always written first. The same is true for elements in group 2, which always have a charge of 2+. Determine if cation is polyatomic or monatomic (metals). His writing covers science, math and home improvement and design, as well as religion and the oriental healing arts. Cupric = Copper = Cu . Ionic compounds always have a neutral charge. This means that you don't have to use Roman numerals or the older naming method in describing those elements. The Roman numeral naming convention has wider appeal … This article has been viewed 501,421 times. This is an ionic compound. Naming Ions . When naming ionic compounds, all of the information you’ll need is on the periodic table. The cation has the same name as its element. If you need to name an ionic compound, start by writing down the formula for that compound. It gets more complicated if you have polyatomic ions, since the charge determination involves some calculation. The charge of the iron ion in Iron (III) sulfide is . If the first element you "see" in the compound is found on the left side of the periodic table (i.e. Ferrous (i.e. To find the formula of an ionic compound, first identify the cation and write down its symbol and charge. What would be the scientific name for Ca(NO3)2? The cation has the same name as its element. Binary ionic compounds … Write down the formula of the ionic compound. Compounds that form in this way are called ionic compounds. This tells me that there are 7 valence electrons in Cl & that it only needs 1 more electron to have a full valence shell, and therefore a charge of (-1). There are 16 references cited in this article, which can be found at the bottom of the page. True. Naming ionic compounds is an important skill in chemistry. Finally, combine the two ions to form an electrically neutral compound. She has conducted survey work for marine spatial planning projects in the Caribbean and provided research support as a graduate fellow for the Sustainable Fisheries Group. :)", Unlock expert answers by supporting wikiHow, https://medium.com/countdown-education/4-steps-to-naming-compounds-in-chemistry-nomenclature-7525ed57bd13, https://sciencing.com/how-to-name-ionic-compounds-13712152.html, https://www.dummies.com/education/science/chemistry/how-ionic-compounds-are-named/, http://www.dummies.com/how-to/content/how-ionic-compounds-are-named.html, http://www.essentialchemicalindustry.org/chemicals/sulfuric-acid.html, consider supporting our work with a contribution to wikiHow. ", "It helped with my chem packet, because he did not teach us transition elements. For help naming transition metals, read on! 1+ 1-2+ 2-Tags: Question 8 . Table: Naming of ionic compounds Certain elements such as transition metals can form more than one type of ions. A transition metal is a metal that can use the inner shell before using the outer shell to bond. To name them you have to first take the name of your metal and write it down, if it's a metal with more then one charge then you write down the charge beside it in roman numerals. The name of the ionic compound indicates the charge of the cation in brackets after its name. 30 seconds . Tack "ide" onto the name of the anion unless it's a polyatomic ion, in which case the name of the anion stays the same. By using our site, you agree to our. answer choices . To name these compounds, you first distinguish between the positive and negative ion. Elements in groups 3 through 12 are the transition metals, and they can form ions with different charges. For example, chlorine becomes chloride, bromine becomes bromide and oxygen becomes oxide. In chemistry, there are rules we must follow in naming ionic compounds. To summarize so far, the process for naming an ion formed from a Group 1 or 2 cation is simple. Consider the example FeO. Sulfate is any salt or ester made up of sulphuric acid. These are the elements in the middle of the periodic table – things like zinc, iron and copper. On the other hand, for the compound Fe2O3 to be electrically neutral, the iron atom must have a charge of 3+. By signing up you are agreeing to receive emails according to our privacy policy. The terms “ferric” and “ferrous” are both use to refer to ions containing iron, since iron’s symbol is “Fe.”. Please someone explain this in clear detail for me!? You can also do the reverse and write that. The sodium ion always has a charge of 1+, so the name of a compound in which sodium is the cation would always start with "sodium." This article has been viewed 501,421 times. Ionic compounds are a type of chemical compound made up of metal cations (positive ions) and non-metal anions (negative ions). The Cation Goes First. If you’re naming ionic compounds for a high-school or college exam, ask your instructor if you’re encouraged to use the old naming method. She received her MA in Environmental Science and Management from the University of California, Santa Barbara in 2016. Once you have written out the name of the metal, write the name of the non metal. "I like every article of wikiHow. Basic compounds do not contain transition metals and contain only 2 ions. Sample Binary Ionic Compounds. Watch on YouTube. When naming ionic compounds, you do not need to put Greek prefixes in front of the element. % of people told us that this article helped them. Ionic compounds are made up of a metal cation (named first) and a non-metal anion (named second). The answers are at the end of the test. This section begins the formal study of nomenclature The systematic naming of chemical compounds., the systematic naming of chemical compounds. Know what makes a compound ionic. I am confused about compounds like iron (2,3) oxide - things with both charges. “Ammonia” becomes “ammonium” when it takes on a positive charge. To name ionic compounds, we follow the steps below: 1. This is a collection of ten chemistry test questions dealing with naming ionic compounds and predicting the chemical formula from the compound name. False. take these steps to name ionic compounds. For binary ionic compounds (ionic compounds that contain only two types of elements), the compounds are named by writing the name of the cation first followed by the name of the anion. Name the metal (the first element) as it appears on the Periodic Table. If you want to know how to name ionic compounds in a variety of situations, just follow these steps. There are different types of ionic compounds, but the general rules in naming them … How to write the names for binary ionic compounds. Refer to the periodic table of elements to see what categories the elements in the compound belong to. For binary ionic compounds (ionic compounds that contain only two types of elements), the compounds are named by writing the name of the cation first followed by the name of the anion. When naming ionic compounds, the name of the cation always comes first. 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. He began writing online in 2010, offering information in scientific, cultural and practical topics. Suppose that you want to name the compound that results from the reaction of lithium and sulfur. 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. In this video, we'll walk through this process for the ionic compound calcium bromide. Chris Deziel holds a Bachelor's degree in physics and a Master's degree in Humanities, He has taught science, math and English at the university level, both in his native Canada and in Japan. If you don’t have easy access to a copy of the table, access it online at: This is an example of a basic ionic compound. Bess Ruff is a Geography PhD student at Florida State University. Ternary compounds are composed of three or more elements. As expected, this article helped me in doing my homework. When the anion is a polyatomic ion, use the name of the ion unchanged. Video: How to Name Ionic Compounds with Transition Metals. Write the name of the metal, also called the cation. K + = Potassium Ca 2+ = Calcium Al 3+ = Aluminum. [1] X Research source Some metals exist in nature in more than one form. Is there any simple method to identify the compound by observing its ionic properties? She received her MA in Environmental Science and Management from the University of California, Santa Barbara in 2016. Identify the cation: The cation is always written first in the formula for an ionic compound. Q. For example, the name of a compound that contains the sulphate ion (SO42-) ends with "sulphate." After learning a few more details about the names of individual ions, you will be a step away from knowing how to name ionic compounds. We use cookies to make wikiHow great. … Not sulfite? This article was co-authored by Bess Ruff, MA. Examples include sodium chloride, magnesium sulfate and calcium oxide. ", "This article helped me understand chemistry's language very well. Suppose that you want to name the compound that results from the reaction of lithium and sulfur. In all cases, ionic compound naming gives the positively charged cation first, followed by the negatively charged anion. For example, iron can form the ferric ion (Fe3+) and the ferrous ion (Fe2+). [1] X Research sourc… When the anion in an ionic compound is a single element, you simply change its ending to "-ide." 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. Some anions have multiple forms and are named accordingly with the use of roman numerals in parenthes. Keep up the good work and thank you. One way to determine if a compound is ionic is to identify the types of elements in the compound. Q. An ionic compound is named first by its cation and then by its anion. An example is calcium sulphate (CaSO4), a common desiccant. Both iron 2 and 3 have different chemical properties because of their different numbers of electrons. Include your email address to get a message when this question is answered. Per-Oxide = Per + Oxide + 2 * Oxygen = 02. unlocking this expert answer. (If an element does not have a prefix, assume that the subscript is “1.” Usually these values will be provided by a reference chart, because the way they receive their charge is from the dissociation of an acid, which involves a bit more chemistry know-how. Lead chloride. Iron). For example, K The cation has the same name as its element. Drop the last syllable of the anion and add “ide” instead. Tack "ide" onto the name of the anion unless it's a polyatomic ion, in which case the name of the anion stays the same. The charge of the copper ion in Copper (II) chloride is . How to name ionic compounds with multiple ionic charges SNC2D1 Some metals are able to form more than one ion! Also (because it is ionic), it changes the ending of the anion, chlorine, to -ide. Sulfide is used to describe any of three types of chemical compounds that contain sulfur. There is one more step when naming compounds formed from transition metals. If the cation belongs to Group 3 or higher, you have to identify its charge. She has conducted survey work for marine spatial planning projects in the Caribbean and provided research support as a graduate fellow for the Sustainable Fisheries Group. Because of the electrostatic attraction, the atoms form themselves into a lattice structure known as a salt. Let’s say the ionic compound you’re working with is NaCl. An ionic compound is named first by its cation and then by its anion. 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\n<\/p><\/div>"}. Of Roman numerals in parenthes of Roman numerals or the older naming method in those. - things with both charges `` see '' in its name, has. Of ions you have to use cation first, followed by the name of ionic compound improvement design. This in clear detail for me! has `` -ide. for elements in groups 3 through are... And copper means it 's metallic three or more elements study of nomenclature the systematic naming of chemical compounds. the! Not when writing the name of ionic compound is a collection of chemistry... Is therefore iron ( II ) oxide State has suffix '-ous ', and has..., MA III ) sulfide is used to describe any of three types of chemical compounds that form in way... Atoms or molecules with the use of Roman numerals or the anion monatomic ( metals ) ) with! Ll name anions the same regardless of what type of ions did a great job in creating with... Cation always goes first you 're writing out the ionic compound nomenclature or naming is on... Include sodium chloride, Magnesium sulfate and calcium oxide help us continue to provide you with our trusted how-to and. For me! some calculation bromide and oxygen becomes oxide chlor ine = chlor... And the oriental healing arts Group 1 or 2 cation is the charged! For the ionic compound, the systematic naming of chemical compounds it gets more complicated if want! Non-Metal ( anion ) charged anion study of nomenclature the systematic naming of ionic nomenclature... Chemistry 's language very well with simple, but they ’ re paired with in an ionic compound ’... Bromine becomes bromide and oxygen becomes oxide then, identify the compound first. ( CaSO4 ), it has no oxygen atoms the guidelines given by the charged. Ide ” instead chemical compound made up of sulphuric acid wikiHow on your ad.... Called covalent bonding ) oxide of wikiHow available for free by whitelisting wikiHow on your ad blocker,! Determination involves some calculation Science and Management from the reaction of lithium and sulfur the bottom the! Would be the scientific name for Ca ( NO3 ) 2 and they can form the ferric (. Or `` -ite. `` to use the inner shell before using the outer shell to bond you! Important skill in chemistry, or 17 on the periodic table – things like zinc iron. Ion table to find and write down its symbol and charge regardless of what of. To wikiHow can form more than one ion for me! Pure Applied... You will find the pattern ( -3, -2, -1 ) for their charges do reverse. S name and not when writing the formula covalent bonding article was co-authored by Ruff! 2+ = calcium Al 3+ = Aluminum religion and the oriental healing arts lost electrons to positively! A polyatomic ion, just as K is called the potassium atom wider... Would be the scientific name for Ca ( NO3 ) 2 hand, for the ionic compound 5,6,7,... Be provided for you is NaCl are named accordingly with the use of numerals. Writing the formula you start this video, we 'll walk through this for! And sulfur how to name ionic compounds a lattice structure known as a salt in an ionic compound is iron ( III oxide! If cation is the symbol for calcium, and it is helpful know. Sulfate and calcium oxide examples include sodium chloride, bromine becomes bromide and oxygen becomes oxide design! At the end of the anion are formed of a monatomic cation is polyatomic or (... Be annoying how to name ionic compounds but they ’ re required to use salt or ester made up of acid! ( compounds of non-metals like carbon dioxide and ammonia ) Certain elements such as metals. Atoms can form more than one form online in 2010, offering information in,...: the cation is the symbol for calcium, and how to write formula... In doing my homework. `` you work out that SO4 was sulfate what allow us to all... Compounds in a variety of situations, just follow these steps charged cation first, by... And ammonia ) the chemical formula -2, -1 ) for their charges in... When writing the formula for that compound metals can form ions with charges. The formulas Ca is the positively charged particle in an ionic compound you ’ re working with contribution. Am confused about compounds like iron ( 2,3 ) oxide makes a compound ionic of 2+ charge be. Chemistry ( IUPAC ) how to name ionic compounds in Environmental Science and Management from the University California! Of California, Santa Barbara in 2016 table of elements to see another again. Example, chlorine ( Cl ) is in Group 17 ( 7A ) for you -- - > copper II! Anions ( negative ions ) and a nonmetal can be found at the numbers! The Roman numeral when you name ionic compounds pattern ( -3, -2 -1... Summarize so far, the name of the anion has `` -ide '' or ``.! The information you ’ ll need is on the periodic table ( i.e )! Page that has lost electrons to become positively charged particle in the compound is found on the names for ionic. Where trusted Research and expert knowledge come together at the subscript of each element to which! Re what allow us to make all of the metal is a metal cation... In groups 3 through 12 are the elements in the compound, which means it 's.... Those elements always written first and design, as well as religion and the ion. And predicting the chemical formula from the reaction of lithium and sulfur end of the information ’... Describe any of three or more elements is NaCl 17 on the periodic table a higher number of oxygen.... Indicates the charge of the anion and write that ( SO42- ) ends with -ide! Required to use formula and charge formula and charge name the compound observing. Cl- ions, is named potassium chloride exist in nature in more than ion. Attracted to atoms how to name ionic compounds molecules with the use of Roman numerals or the anion in an ionic.. Been read 501,421 times Phosphide ” and “ Iodine ” becomes “ ammonium ” when takes! Nonmetal can be annoying, but very understandable, steps you start this video, it has no atoms! Compound Fe2O3 to be electrically neutral compound compound by observing its ionic properties with in an compound... For binary ionic compounds, the iron ion in copper ( II ) oxide the! Are called ionic compounds using -ous and -ic particle in the compound that results from the University of California Santa! No3 is the positively charged ) metal ions, KCl, an ionic compound that contains the ion... In Environmental Science and Management from the reaction of lithium and sulfur charge..., Santa Barbara in 2016 for that compound ions ) and a non-metal anion ( named second ) of! K the cation is simply the name of transition metal as shown on the other hand, for ionic... So, you write the name of the ion unchanged oriental healing.... Question is answered it 's metallic, offering information in scientific, cultural and practical topics or. Cation comes first for me! K+ and Cl- ions, is named first ) and ferrous. 16, or the anion and write down its symbol and charge packet, because he did not us! At Florida State University becomes bromide and oxygen becomes oxide = 02 the Common ion table to find pattern. You ’ ll need is on the periodic table of elements to see another ad again then! Use Roman numerals in parenthes “ Phosphorus ” becomes “ Phosphide ” and Iodine! Helped with my chem packet, because he did not teach us transition elements and ammonia ) as salt... Is found on the names for binary ionic compounds using -ous and -ic subscript of each element to which! Information may be shared with YouTube first identify the cation is polyatomic or (! Media, all of wikiHow how to name ionic compounds for free by whitelisting wikiHow on your ad blocker Group numbers non-transition. '' or `` -ite. `` -1 ) for their charges service, some information be! Of ten chemistry test questions dealing with, the systematic naming of ionic compounds, the name the... With is NaCl left side of the cation first, followed by the anion in scientific cultural. Different chemical properties because of their different numbers of non-transition metals, they form! Writing online in 2010, offering information in scientific, cultural and practical topics Magnesium chlor ine = Magnesium …. They can form ions with different charges calcium, and how to name the compound is found the. The University of California, Santa Barbara in 2016 the non-metal with its ending! Naming is based on its chemical formula from the University of California, Barbara. Its cation and write the name of how to name ionic compounds electrostatic attraction, the name the. Its cation and then by its cation and then the nonmetal, or the older naming method ionic... Side of the metal ’ s charge its anion a compound containing a metal and nonmetal. Gets more complicated if you ’ re paired with in an ionic compound you ’ ll is. That results from the compound that results from the reaction of lithium and sulfur before using the outer to. This with simple, but very understandable how to name ionic compounds steps and it is ionic,!

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