{"id":35764,"date":"2025-06-24T16:17:35","date_gmt":"2025-06-24T16:17:35","guid":{"rendered":"https:\/\/gaviki.com\/blog\/?p=35764"},"modified":"2025-06-24T16:17:37","modified_gmt":"2025-06-24T16:17:37","slug":"what-is-the-formula-and-name-of-the-compound-formed-between-mg-and-p","status":"publish","type":"post","link":"https:\/\/gaviki.com\/blog\/what-is-the-formula-and-name-of-the-compound-formed-between-mg-and-p\/","title":{"rendered":"What is the formula and name of the compound formed between Mg and P"},"content":{"rendered":"\n

What is the formula and name of the compound formed between Mg and P? Select one: – Mg3P2; Tri Magnesium Di Phosphide – Mg3P2; Magnesium Phosphide – Mg2P3; Magnesium (II) Phosphide – Mg2P3; Magnesium Phosphide Question 20 Not yet answered Marked out of 1.00 Flag question The mass of 1 molecule of HF in grams is 20.01. Select one: – True<\/p>\n\n\n\n

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

Correct Answer:<\/h3>\n\n\n\n

Mg\u2083P\u2082; Magnesium Phosphide<\/strong><\/p>\n\n\n\n

\n\n\n\n

Explanation:<\/h3>\n\n\n\n

When magnesium (Mg) and phosphorus (P) combine to form a compound, they follow the rules of ionic bonding. Here’s how we determine the correct formula and name:<\/p>\n\n\n\n

1. Determine the charges of the ions:<\/strong><\/h4>\n\n\n\n
    \n
  • Magnesium (Mg)<\/strong> is an alkaline earth metal<\/strong> found in group 2 of the periodic table. It tends to lose two electrons<\/strong> to achieve a stable electron configuration, forming a Mg\u00b2\u207a<\/strong> ion.<\/li>\n\n\n\n
  • Phosphorus (P)<\/strong> is a nonmetal<\/strong> found in group 15. It tends to gain three electrons<\/strong> to complete its valence shell, forming a P\u00b3\u207b<\/strong> ion.<\/li>\n<\/ul>\n\n\n\n

    2. Balance the charges:<\/strong><\/h4>\n\n\n\n

    To create a neutral compound, the total positive charge must equal the total negative charge. The smallest common multiple of 2 (from Mg\u00b2\u207a) and 3 (from P\u00b3\u207b) is 6.<\/p>\n\n\n\n

      \n
    • To get a +6 charge from magnesium, you need three Mg\u00b2\u207a ions<\/strong> (3 \u00d7 +2 = +6).<\/li>\n\n\n\n
    • To get a \u20136 charge from phosphorus, you need two P\u00b3\u207b ions<\/strong> (2 \u00d7 \u20133 = \u20136).<\/li>\n<\/ul>\n\n\n\n

      Thus, the correct formula is Mg\u2083P\u2082<\/strong>.<\/p>\n\n\n\n

      3. Naming the compound:<\/strong><\/h4>\n\n\n\n

      In naming ionic compounds:<\/p>\n\n\n\n

        \n
      • The metal (Mg)<\/strong> keeps its name: Magnesium<\/strong>.<\/li>\n\n\n\n
      • The nonmetal (P)<\/strong> takes the suffix \u201c\u2013ide,\u201d becoming Phosphide<\/strong>.<\/li>\n\n\n\n
      • No prefixes<\/strong> (like “tri” or “di”) are used in naming binary ionic compounds<\/strong>.<\/li>\n<\/ul>\n\n\n\n

        So, the correct name is Magnesium Phosphide<\/strong>, and not<\/strong> “Tri Magnesium Di Phosphide.”<\/p>\n\n\n\n

        \n\n\n\n

        Second Part:<\/h3>\n\n\n\n

        The statement “The mass of 1 molecule of HF in grams is 20.01” is FALSE.<\/strong><\/p>\n\n\n\n

        Here\u2019s why:<\/strong><\/p>\n\n\n\n

        20.01 grams is the molar mass<\/strong> of hydrogen fluoride (HF), not the mass of a single molecule.<\/p>\n\n\n\n

          \n
        • The molar mass<\/strong> is the mass of 1 mole (6.022 \u00d7 10\u00b2\u00b3 molecules) of HF.<\/li>\n\n\n\n
        • To find the mass of one molecule<\/strong>, divide the molar mass by Avogadro’s number:<\/li>\n<\/ul>\n\n\n\n

          20.01 g\/mol6.022\u00d71023\u22483.32\u00d710\u221223 grams\\frac{20.01 \\text{ g\/mol}}{6.022 \\times 10^{23}} \\approx 3.32 \\times 10^{-23} \\text{ grams}6.022\u00d7102320.01 g\/mol\u200b\u22483.32\u00d710\u221223 grams<\/p>\n\n\n\n

          So, one molecule of HF weighs only about 3.32 \u00d7 10\u207b\u00b2\u00b3 grams<\/strong>, not 20.01 grams.<\/p>\n\n\n\n

          \n\n\n\n

          Final Answers:<\/strong><\/p>\n\n\n\n

            \n
          • Compound<\/strong>: Mg\u2083P\u2082; Name<\/strong>: Magnesium Phosphide<\/li>\n\n\n\n
          • HF molecule mass statement<\/strong>: False<\/strong><\/li>\n<\/ul>\n\n\n\n
            \"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"

            What is the formula and name of the compound formed between Mg and P? Select one: – Mg3P2; Tri Magnesium Di Phosphide – Mg3P2; Magnesium Phosphide – Mg2P3; Magnesium (II) Phosphide – Mg2P3; Magnesium Phosphide Question 20 Not yet answered Marked out of 1.00 Flag question The mass of 1 molecule of HF in grams […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-35764","post","type-post","status-publish","format-standard","hentry","category-quiz-questions"],"_links":{"self":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/35764","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/comments?post=35764"}],"version-history":[{"count":1,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/35764\/revisions"}],"predecessor-version":[{"id":35766,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/35764\/revisions\/35766"}],"wp:attachment":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/media?parent=35764"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/categories?post=35764"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/tags?post=35764"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}