{"id":7851,"date":"2026-03-09T11:30:48","date_gmt":"2026-03-09T11:30:48","guid":{"rendered":"https:\/\/www.chennaineet.com\/blog\/?p=7851"},"modified":"2026-03-09T11:30:51","modified_gmt":"2026-03-09T11:30:51","slug":"number-of-valence-electrons-in-chlorine-ion","status":"publish","type":"post","link":"https:\/\/www.chennaineet.com\/blog\/number-of-valence-electrons-in-chlorine-ion\/","title":{"rendered":"Number of Valence Electrons in Chlorine Ion: The Simple Chemistry Explanation Every Student Should Know"},"content":{"rendered":"\n<p><strong>Number of valence electrons in chlorine ion<\/strong> is one of the most searched chemistry questions by students preparing for <strong>NEET, JEE, and school exams<\/strong>. If you\u2019ve ever looked at the question and felt confused \u2014 you\u2019re not alone.<\/p>\n\n\n\n<p>Many learners mix up <strong>total electrons<\/strong> and <strong>valence electrons<\/strong>, especially when ions are involved. The good news? Once you understand how chlorine forms an ion, the answer becomes incredibly simple.<\/p>\n\n\n\n<p>Right away, here is the correct concept:<\/p>\n\n\n\n<p>\ud83d\udc49 <strong>The number of valence electrons in a chlorine ion (Cl\u207b) is 8.<\/strong><\/p>\n\n\n\n<p>Yes \u2014 <strong>8 valence electrons<\/strong>.<\/p>\n\n\n\n<p>But why exactly 8? And why do some questions include confusing options like <strong>17 or 18<\/strong>?<\/p>\n\n\n\n<p>Let\u2019s break it down in the simplest way possible so that the concept stays with you forever.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udd11 Key Highlights<\/h1>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Primary concept:<\/strong> The <strong>number of valence electrons in chlorine ion<\/strong> is <strong>8<\/strong>.<\/li>\n\n\n\n<li>Chlorine\u2019s atomic number is <strong>17<\/strong>.<\/li>\n\n\n\n<li>A neutral chlorine atom has <strong>7 valence electrons<\/strong>.<\/li>\n\n\n\n<li>When chlorine gains <strong>1 electron<\/strong>, it forms <strong>Cl\u207b (chloride ion)<\/strong>.<\/li>\n\n\n\n<li>The chlorine ion now has a <strong>complete octet (8 valence electrons)<\/strong>.<\/li>\n\n\n\n<li>This makes the ion <strong>stable like noble gases<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p>If you remember only one thing from this guide, remember this:<\/p>\n\n\n\n<p>\u2b50 <strong>Chlorine ion valence electrons = 8<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Understanding the Chlorine Atom<\/h1>\n\n\n\n<p>Before talking about ions, you need to understand how the <strong>chlorine atom<\/strong> itself is structured.<\/p>\n\n\n\n<p>Chlorine is an element in <strong>Group 17 (Halogens)<\/strong> of the periodic table.<\/p>\n\n\n\n<p>Basic properties of chlorine:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Atomic number:<\/strong> 17<\/li>\n\n\n\n<li><strong>Symbol:<\/strong> Cl<\/li>\n\n\n\n<li><strong>Group:<\/strong> Halogens<\/li>\n\n\n\n<li><strong>Period:<\/strong> 3<\/li>\n<\/ul>\n\n\n\n<p>This means chlorine has <strong>17 electrons<\/strong> in a neutral atom.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Electronic Configuration of Chlorine<\/h3>\n\n\n\n<p>The electron configuration is:<\/p>\n\n\n\n<p><strong>1s\u00b2 2s\u00b2 2p\u2076 3s\u00b2 3p\u2075<\/strong><\/p>\n\n\n\n<p>Breaking this into shells:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Shell<\/th><th>Electrons<\/th><\/tr><\/thead><tbody><tr><td>K shell<\/td><td>2<\/td><\/tr><tr><td>L shell<\/td><td>8<\/td><\/tr><tr><td>M shell<\/td><td>7<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>So the outermost shell contains <strong>7 electrons<\/strong>.<\/p>\n\n\n\n<p>These outermost electrons are called <strong>valence electrons<\/strong>.<\/p>\n\n\n\n<p>\ud83d\udc49 Therefore, a <strong>neutral chlorine atom has 7 valence electrons<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">What Is a Chlorine Ion?<\/h1>\n\n\n\n<p>Now comes the key concept.<\/p>\n\n\n\n<p>Atoms often gain or lose electrons to become <strong>stable<\/strong>. Most atoms follow the <strong>octet rule<\/strong>, meaning they try to achieve <strong>8 electrons in the outer shell<\/strong>.<\/p>\n\n\n\n<p>Chlorine already has <strong>7 valence electrons<\/strong>.<\/p>\n\n\n\n<p>So it needs <strong>just one more electron<\/strong>.<\/p>\n\n\n\n<p>Instead of losing seven electrons (which requires huge energy), chlorine simply <strong>gains one electron<\/strong>.<\/p>\n\n\n\n<p>The reaction looks like this:<\/p>\n\n\n\n<p><strong>Cl + e\u207b \u2192 Cl\u207b<\/strong><\/p>\n\n\n\n<p>The result is called a <strong>chloride ion<\/strong>.<\/p>\n\n\n\n<p>Now chlorine has:<\/p>\n\n\n\n<p>17 + 1 = <strong>18 total electrons<\/strong><\/p>\n\n\n\n<p>This extra electron creates a <strong>negative charge<\/strong>, which is why the ion is written as <strong>Cl\u207b<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Number of Valence Electrons in Chlorine Ion<\/h1>\n\n\n\n<p>Now we can answer the question directly.<\/p>\n\n\n\n<p>After gaining one electron, the electron configuration becomes:<\/p>\n\n\n\n<p><strong>1s\u00b2 2s\u00b2 2p\u2076 3s\u00b2 3p\u2076<\/strong><\/p>\n\n\n\n<p>Let\u2019s focus on the outermost shell.<\/p>\n\n\n\n<p>The third shell now contains:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>3s\u00b2<\/li>\n\n\n\n<li>3p\u2076<\/li>\n<\/ul>\n\n\n\n<p>Total = <strong>8 electrons<\/strong><\/p>\n\n\n\n<p>So the <strong>number of valence electrons in chlorine ion is 8<\/strong>.<\/p>\n\n\n\n<p>This configuration is identical to the noble gas <strong>argon<\/strong>, which explains why the ion is stable.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Why-the-Chlorine-Ion-Valence-Electrons-Become-8-1024x683.png\" alt=\"\" class=\"wp-image-7854\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Why-the-Chlorine-Ion-Valence-Electrons-Become-8-1024x683.png 1024w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Why-the-Chlorine-Ion-Valence-Electrons-Become-8-300x200.png 300w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Why-the-Chlorine-Ion-Valence-Electrons-Become-8-768x512.png 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Why-the-Chlorine-Ion-Valence-Electrons-Become-8-440x293.png 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Why-the-Chlorine-Ion-Valence-Electrons-Become-8-680x453.png 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Why-the-Chlorine-Ion-Valence-Electrons-Become-8.png 1536w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<h1 class=\"wp-block-heading\">Why the Chlorine Ion Valence Electrons Become 8<\/h1>\n\n\n\n<p>The reason lies in one of the most important rules in chemistry.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">The Octet Rule<\/h3>\n\n\n\n<p>The <strong>octet rule<\/strong> states that atoms tend to gain, lose, or share electrons to achieve <strong>8 electrons in their outer shell<\/strong>.<\/p>\n\n\n\n<p>Examples:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Element<\/th><th>Valence Electrons<\/th><th>What It Does<\/th><\/tr><\/thead><tbody><tr><td>Sodium<\/td><td>1<\/td><td>Loses 1 electron<\/td><\/tr><tr><td>Oxygen<\/td><td>6<\/td><td>Gains 2 electrons<\/td><\/tr><tr><td>Chlorine<\/td><td>7<\/td><td>Gains 1 electron<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>So chlorine follows the same pattern.<\/p>\n\n\n\n<p>It <strong>gains 1 electron \u2192 forms Cl\u207b \u2192 reaches 8 valence electrons<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Step-by-Step Method to Solve Questions Like This<\/h1>\n\n\n\n<p>When exams ask about <strong>chlorine ion valence electrons<\/strong>, follow this method.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Step 1 \u2014 Find Atomic Number<\/h3>\n\n\n\n<p>Chlorine atomic number = <strong>17<\/strong><\/p>\n\n\n\n<p>So electrons = <strong>17<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Step 2 \u2014 Write Electron Configuration<\/h3>\n\n\n\n<p>1s\u00b2 2s\u00b2 2p\u2076 3s\u00b2 3p\u2075<\/p>\n\n\n\n<p>Outer shell = <strong>7 electrons<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Step 3 \u2014 Identify the Ion<\/h3>\n\n\n\n<p>Chlorine ion = <strong>Cl\u207b<\/strong><\/p>\n\n\n\n<p>This means <strong>one electron is gained<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Step 4 \u2014 Add One Electron<\/h3>\n\n\n\n<p>Total electrons:<\/p>\n\n\n\n<p>17 + 1 = <strong>18<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Step 5 \u2014 Count Valence Electrons<\/h3>\n\n\n\n<p>Outermost shell:<\/p>\n\n\n\n<p>3s\u00b2 3p\u2076<\/p>\n\n\n\n<p>Total = <strong>8<\/strong><\/p>\n\n\n\n<p>\u2714 Final answer: <strong>8 valence electrons<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Common MCQ Question (Exam Pattern)<\/h1>\n\n\n\n<p><strong>Question<\/strong><\/p>\n\n\n\n<p>Number of valence electrons in chlorine ion are:<\/p>\n\n\n\n<p>A) 16<br>B) 8<br>C) 17<br>D) 18<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Correct Answer<\/h3>\n\n\n\n<p>\u2705 <strong>B) 8<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Explanation of Each Option<\/h1>\n\n\n\n<h3 class=\"wp-block-heading\">A) 16 \u274c<\/h3>\n\n\n\n<p>16 electrons does not match chlorine\u2019s electronic configuration.<br>The chloride ion contains <strong>18 total electrons<\/strong>, not 16.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">B) 8 \u2705<\/h3>\n\n\n\n<p>This is correct because the outer shell of <strong>Cl\u207b contains 8 electrons<\/strong>, satisfying the <strong>octet rule<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">C) 17 \u274c<\/h3>\n\n\n\n<p>17 electrons belong to a <strong>neutral chlorine atom<\/strong>, not the ion.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">D) 18 \u274c<\/h3>\n\n\n\n<p>18 represents <strong>total electrons<\/strong>, not <strong>valence electrons<\/strong>.<\/p>\n\n\n\n<p>This is a common trap in exams.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Common-MCQ-Question-Exam-Pattern-1-1024x683.png\" alt=\"\" class=\"wp-image-7856\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Common-MCQ-Question-Exam-Pattern-1-1024x683.png 1024w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Common-MCQ-Question-Exam-Pattern-1-300x200.png 300w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Common-MCQ-Question-Exam-Pattern-1-768x512.png 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Common-MCQ-Question-Exam-Pattern-1-440x293.png 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Common-MCQ-Question-Exam-Pattern-1-680x453.png 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Common-MCQ-Question-Exam-Pattern-1.png 1536w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Real-World Example: Why Chlorine Forms Ions<\/h1>\n\n\n\n<p>Understanding <strong>chlorine ion valence electrons<\/strong> becomes easier when you look at real chemistry around you.<\/p>\n\n\n\n<p>One everyday example is <strong>table salt<\/strong>.<\/p>\n\n\n\n<p>Table salt is made of:<\/p>\n\n\n\n<p><strong>Sodium (Na\u207a) + Chloride (Cl\u207b)<\/strong><\/p>\n\n\n\n<p>Here\u2019s what happens:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sodium loses <strong>1 electron<\/strong><\/li>\n\n\n\n<li>Chlorine gains <strong>1 electron<\/strong><\/li>\n<\/ul>\n\n\n\n<p>This creates a stable ionic compound called <strong>sodium chloride (NaCl)<\/strong>.<\/p>\n\n\n\n<p>This simple electron transfer is why salt crystals form so easily in nature.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Why Halogens Always Gain One Electron<\/h1>\n\n\n\n<p>Chlorine belongs to the <strong>halogen group<\/strong>.<\/p>\n\n\n\n<p>Halogens include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Fluorine<\/li>\n\n\n\n<li>Chlorine<\/li>\n\n\n\n<li>Bromine<\/li>\n\n\n\n<li>Iodine<\/li>\n\n\n\n<li>Astatine<\/li>\n<\/ul>\n\n\n\n<p>All halogens share a common trait.<\/p>\n\n\n\n<p>They have <strong>7 valence electrons<\/strong>.<\/p>\n\n\n\n<p>Because they need only <strong>1 electron to complete the octet<\/strong>, they are extremely <strong>reactive<\/strong>.<\/p>\n\n\n\n<p>That is why halogens easily form <strong>negative ions<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Study Tip for NEET and Board Exams<\/h1>\n\n\n\n<p>Students often lose marks because they confuse:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Valence electrons<\/strong><\/li>\n\n\n\n<li><strong>Total electrons<\/strong><\/li>\n<\/ul>\n\n\n\n<p>A quick trick helps avoid mistakes.<\/p>\n\n\n\n<p>Remember this rule:<\/p>\n\n\n\n<p>\ud83d\udc49 <strong>Valence electrons = electrons in the outermost shell only<\/strong><\/p>\n\n\n\n<p>Not the total number of electrons.<\/p>\n\n\n\n<p>So even though <strong>Cl\u207b has 18 electrons<\/strong>, only <strong>8 belong to the outer shell<\/strong>.<br><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Study-Tip-for-NEET-and-Board-Exams-1024x683.png\" alt=\"\" class=\"wp-image-7857\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Study-Tip-for-NEET-and-Board-Exams-1024x683.png 1024w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Study-Tip-for-NEET-and-Board-Exams-300x200.png 300w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Study-Tip-for-NEET-and-Board-Exams-768x512.png 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Study-Tip-for-NEET-and-Board-Exams-440x293.png 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Study-Tip-for-NEET-and-Board-Exams-680x453.png 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Study-Tip-for-NEET-and-Board-Exams.png 1536w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Best Practices to Remember This Concept<\/h1>\n\n\n\n<p>Students preparing for competitive exams benefit from using small memory tricks.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1\ufe0f\u20e3 Remember the Halogen Rule<\/h3>\n\n\n\n<p>All halogens:<\/p>\n\n\n\n<p><strong>7 valence electrons \u2192 gain 1 \u2192 become 8<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">2\ufe0f\u20e3 Practice Periodic Table Patterns<\/h3>\n\n\n\n<p>Group numbers help predict valence electrons.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Group<\/th><th>Valence Electrons<\/th><\/tr><\/thead><tbody><tr><td>1<\/td><td>1<\/td><\/tr><tr><td>2<\/td><td>2<\/td><\/tr><tr><td>16<\/td><td>6<\/td><\/tr><tr><td>17<\/td><td>7<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Chlorine belongs to <strong>Group 17<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">3\ufe0f\u20e3 Visualize Electron Shells<\/h3>\n\n\n\n<p>Imagine electrons filling layers around the nucleus.<\/p>\n\n\n\n<p>When chlorine gains one electron, the outer layer becomes <strong>complete and stable<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Useful Resources to Learn More<\/h1>\n\n\n\n<p>For deeper chemistry learning, these sources explain atomic structure clearly:<\/p>\n\n\n\n<p>External references:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.chennaineet.com\/blog\/ecosystem-class-12-ncert\/\" data-type=\"link\" data-id=\"https:\/\/www.chennaineet.com\/blog\/ecosystem-class-12-ncert\/\">NCERT Book for Class 12 Biology<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.chennaineet.com\/blog\/physics-class-11-part-1-ncert\/\" data-type=\"link\" data-id=\"https:\/\/www.chennaineet.com\/blog\/physics-class-11-part-1-ncert\/\">NCERT Book for Class 11 Physics<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.chennaineet.com\/blog\/environmental-chemistry-class-11-ncert\/\" data-type=\"link\" data-id=\"https:\/\/www.chennaineet.com\/blog\/environmental-chemistry-class-11-ncert\/\">NCERT Book for Class 11 Chemistry<\/a><\/li>\n<\/ul>\n\n\n\n<p>These platforms provide <strong>visual explanations and atomic models<\/strong> that make concepts easier.<\/p>\n\n\n\n<p>For related chemistry topics, readers often explore:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Electronic configuration explained<\/li>\n\n\n\n<li>Octet rule in chemistry<\/li>\n\n\n\n<li>Ionic bonding examples<\/li>\n\n\n\n<li>Periodic table trends<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Quick Summary<\/h1>\n\n\n\n<p>Let\u2019s recap everything clearly.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Chlorine atomic number = <strong>17<\/strong><\/li>\n\n\n\n<li>Neutral chlorine valence electrons = <strong>7<\/strong><\/li>\n\n\n\n<li>Chlorine gains <strong>1 electron<\/strong><\/li>\n\n\n\n<li>Forms <strong>Cl\u207b ion<\/strong><\/li>\n\n\n\n<li>New outer shell electrons = <strong>8<\/strong><\/li>\n<\/ul>\n\n\n\n<p>\u2705 <strong>Number of valence electrons in chlorine ion = 8<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Final Thoughts<\/h1>\n\n\n\n<p>At first, <strong>Chemistry <\/strong>may be confusing to you. You may look at a Chemistry problem (ex. number of valance electrons in chlorine ion) and think it looks complicated.<\/p>\n\n\n\n<p>But actually, once you learn what electron configuration and octet rule are, this concept will make complete sense.<\/p>\n\n\n\n<p>Once you know that when chlorine gets 1 electron to become stable, then you will find it to be so obvious in the future.<\/p>\n\n\n\n<p>Therefore, if you see this type of problem on your next NEET mock test, school exam or any other competitive tests-you will be ready!<\/p>\n\n\n\n<p>You\u2019ll instantly know:<\/p>\n\n\n\n<p>\u2b50 <strong>Chlorine ion valence electrons = 8<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The number of valence electrons in chlorine ion (Cl\u207b) is an important chemistry concept for students. Learn the simple explanation, electron configuration, and exam-ready tips.<\/p>\n","protected":false},"author":2,"featured_media":7853,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[781],"tags":[1112,1106,1109,1110,1101,1107,1100,1105,1104,1108,1103,1099,1111,1102],"class_list":["post-7851","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-question-answer","tag-chemistry-mcq-valence-electrons","tag-chemistry-valence-electrons-chlorine","tag-chloride-ion-electrons","tag-chlorine-electron-configuration","tag-chlorine-ion-electron-configuration","tag-chlorine-ion-structure","tag-chlorine-ion-valence-electrons","tag-chlorine-valence-electrons-explained","tag-cl-minus-valence-electrons","tag-neet-chemistry-valence-electrons-question","tag-number-of-electrons-in-chlorine-ion","tag-number-of-valence-electrons-in-chlorine-ion","tag-periodic-table-chlorine-valence-electrons","tag-valence-electrons-in-cl"],"_links":{"self":[{"href":"https:\/\/www.chennaineet.com\/blog\/wp-json\/wp\/v2\/posts\/7851","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.chennaineet.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.chennaineet.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.chennaineet.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.chennaineet.com\/blog\/wp-json\/wp\/v2\/comments?post=7851"}],"version-history":[{"count":2,"href":"https:\/\/www.chennaineet.com\/blog\/wp-json\/wp\/v2\/posts\/7851\/revisions"}],"predecessor-version":[{"id":7858,"href":"https:\/\/www.chennaineet.com\/blog\/wp-json\/wp\/v2\/posts\/7851\/revisions\/7858"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.chennaineet.com\/blog\/wp-json\/wp\/v2\/media\/7853"}],"wp:attachment":[{"href":"https:\/\/www.chennaineet.com\/blog\/wp-json\/wp\/v2\/media?parent=7851"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.chennaineet.com\/blog\/wp-json\/wp\/v2\/categories?post=7851"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.chennaineet.com\/blog\/wp-json\/wp\/v2\/tags?post=7851"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}