{"id":219783,"date":"2025-05-26T19:44:50","date_gmt":"2025-05-26T19:44:50","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=219783"},"modified":"2025-05-26T19:44:52","modified_gmt":"2025-05-26T19:44:52","slug":"name-the-ionic-compound-mgcl2","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/05\/26\/name-the-ionic-compound-mgcl2\/","title":{"rendered":"Name the ionic compound MgCl2."},"content":{"rendered":"\n

1.Name the ionic compound MgCl2. Spell out the full name of the ionic compound. If the metal in the ionic compound is a transition element (with variable charge metal ions), the ionic charge is written as a Roman numeral following the element name of the cation. 2. Name the ionic compound CuF2. Spell out the full name of the ionic compound. 3.Name the ionic compound CuNO3. Spell out the full name of the ionic compound.<\/p>\n\n\n\n

The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n

Correct Answers:<\/strong><\/h3>\n\n\n\n
    \n
  1. MgCl\u2082<\/strong> \u2014 Magnesium chloride<\/em><\/li>\n\n\n\n
  2. CuF\u2082<\/strong> \u2014 Copper(II) fluoride<\/em><\/li>\n\n\n\n
  3. CuNO\u2083<\/strong> \u2014 Copper(I) nitrate<\/em><\/li>\n<\/ol>\n\n\n\n
    \n\n\n\n

    Explanation <\/strong><\/h3>\n\n\n\n

    Ionic compounds are named based on specific rules established by IUPAC (International Union of Pure and Applied Chemistry). The name consists of the cation (metal)<\/strong> followed by the anion (non-metal or polyatomic ion)<\/strong>.<\/p>\n\n\n\n

    \n\n\n\n

    1. MgCl\u2082 \u2013 Magnesium chloride<\/strong><\/h4>\n\n\n\n

    Magnesium (Mg) is an alkaline earth metal in Group 2 of the periodic table. It has a fixed charge of +2<\/strong> and does not require a Roman numeral in its name. Chlorine (Cl) is a halogen and gains one electron to become Cl\u207b<\/strong>. Since two Cl\u207b ions are needed to balance one Mg\u00b2\u207a, the formula is MgCl\u2082<\/strong>. The name is simply magnesium chloride<\/strong> \u2014 no Roman numeral is needed because magnesium\u2019s charge is always +2.<\/p>\n\n\n\n

    \n\n\n\n

    2. CuF\u2082 \u2013 Copper(II) fluoride<\/strong><\/h4>\n\n\n\n

    Copper (Cu) is a transition metal<\/strong>, meaning it can have multiple oxidation states (commonly +1 and +2). Fluoride (F\u207b) is a monatomic anion with a -1<\/strong> charge. Since there are two F\u207b<\/strong> ions, the total negative charge is -2, so copper must be +2<\/strong> in this compound. Thus, we write the name as Copper(II) fluoride<\/strong>. The Roman numeral (II) indicates the +2 charge on the copper ion.<\/p>\n\n\n\n

    \n\n\n\n

    3. CuNO\u2083 \u2013 Copper(I) nitrate<\/strong><\/h4>\n\n\n\n

    Nitrate (NO\u2083\u207b) is a polyatomic ion<\/strong> with a charge of -1<\/strong>. Since there is only one nitrate ion, copper must have a +1<\/strong> charge to balance the charge. Therefore, the correct name is Copper(I) nitrate<\/strong>, where the Roman numeral (I) represents the +1 oxidation state of copper.<\/p>\n\n\n\n

    \n\n\n\n

    Summary:<\/h3>\n\n\n\n
      \n
    • Use Roman numerals for transition metals<\/strong> with variable charges.<\/li>\n\n\n\n
    • Don\u2019t use Roman numerals for main group metals<\/strong> with fixed charges.<\/li>\n\n\n\n
    • Match the total positive and negative charges<\/strong> to ensure compound neutrality.<\/li>\n<\/ul>\n\n\n\n
      \"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"

      1.Name the ionic compound MgCl2. Spell out the full name of the ionic compound. If the metal in the ionic compound is a transition element (with variable charge metal ions), the ionic charge is written as a Roman numeral following the element name of the cation. 2. Name the ionic compound CuF2. Spell out the […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-219783","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/219783","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=219783"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/219783\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=219783"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=219783"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=219783"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}