Remember metals lose electrons to form cations and nonmetals gain electrons to form anions. Although HF can be named hydrogen fluoride, it is given a different name for emphasis that it is an acid. If it is an acid, we base it's name on the ionic compound it would form if hydrogen could be a cation. . - Answers Use this to practice the names and formulas of covalent compounds and acids. 2013-10-28 16:53:19. There is a simple and easy way to identify ionic versus compounds. They end in [-ide], [-ate] and [-ite]. [CDATA[*/{"annotations":null,"assetRoot":null,"branding":null,"clientUrl":"https://cdn.hypothes.is/hypothesis/1.38.0/build/boot.js","oauthEnabled":null,"onLayoutChange":null,"openLoginForm":null,"openSidebar":null,"query":null,"services":null,"showHighlights":"always","sidebarAppUrl":"https://hypothes.is/app.html","subFrameIdentifier":"0250401132841779","pluginClasses":{}}/*]]>*/, /**/. Expert Answer. Normally, no prefix is added to the first elements name if there is only one atom of the first element in a molecule. The second element is named by taking the stem of the element name and adding the suffix -ide. The carbonate ion (see figure below) consists of one carbon atom and three oxygen atoms and carries an overall charge of 2. Whereas electron affinity is the amount of energy released once that chemical bond is formed between the atoms. Answer: P4O10 ( Phosphorus pentoxide ) is a covalent bond. To be charge neutral, x=+2. Figure\(\PageIndex{6}\): Slide showing periodic trends for nomenclature of oxyanions of halogens. It is very important to include (aq) after the acids because the same compounds can be written in gas phase with hydrogen named first followed by the anion ending with ide. Cobalt(III) bromide. 11K views 2 years ago To tell if SO3 (Sulfur trioxide) is ionic or covalent (also called molecular) we look at the Periodic Table that and see that S is a non-metal and O is a non-metal. It is simply a di-mer of nitrogen dioxide NO2 also known as nitrogen peroxide. [CDATA[*/{"annotations":null,"assetRoot":null,"branding":null,"clientUrl":"https://cdn.hypothes.is/hypothesis/1.38.0/build/boot.js","oauthEnabled":null,"onLayoutChange":null,"openLoginForm":null,"openSidebar":null,"query":null,"services":null,"showHighlights":"always","sidebarAppUrl":"https://hypothes.is/app.html","subFrameIdentifier":"08377344125202544","pluginClasses":{}}/*]]>*/, /*