{"id":220231,"date":"2025-05-28T04:02:59","date_gmt":"2025-05-28T04:02:59","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=220231"},"modified":"2025-05-28T04:03:01","modified_gmt":"2025-05-28T04:03:01","slug":"how-many-electrons-are-in-br","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/05\/28\/how-many-electrons-are-in-br\/","title":{"rendered":"How many electrons are in Br"},"content":{"rendered":"\n

How many electrons are in Br-? A) 36 B) 4 C) 7 D) 34 E) none of the above 50: please help me with my right triangles & trigonometry homework. Can you explain to me what I have to do in order for me to turn it in tomorrow?<\/p>\n\n\n\n

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

To answer your first question:<\/p>\n\n\n\n

How many electrons are in Br\u207b?<\/strong>
Correct answer: A) 36<\/strong><\/p>\n\n\n\n

\n\n\n\n

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

Let\u2019s first understand what the question is asking. You’re asked how many electrons<\/strong> are in a bromide ion<\/strong>, written as Br\u207b<\/strong>.<\/p>\n\n\n\n

Step 1: Know the atomic number of bromine (Br)<\/h4>\n\n\n\n

The atomic number of bromine is 35<\/strong>. This means a neutral<\/strong> bromine atom has:<\/p>\n\n\n\n

    \n
  • 35 protons<\/strong><\/li>\n\n\n\n
  • 35 electrons<\/strong><\/li>\n<\/ul>\n\n\n\n

    Step 2: Understand what the negative sign (\u207b) means<\/h4>\n\n\n\n

    The minus sign (\u207b)<\/strong> indicates that the atom has gained an extra electron<\/strong>, becoming a negative ion<\/strong> (anion). This happens when atoms want to achieve a stable electron configuration, often resembling the nearest noble gas (in this case, krypton).<\/p>\n\n\n\n

    So, if a neutral bromine atom has 35 electrons, then:<\/p>\n\n\n\n

    Br\u207b = 35 (original electrons) + 1 (gained) = 36 electrons<\/strong><\/p>\n\n\n\n

    Therefore, the correct answer is:<\/p>\n\n\n\n

    \n

    A) 36<\/strong><\/p>\n<\/blockquote>\n\n\n\n

    \n\n\n\n

    Tips for Your Right Triangles & Trigonometry Homework<\/strong><\/h3>\n\n\n\n

    For your trigonometry homework due tomorrow, focus on the basic trigonometric ratios<\/strong> used in right triangles<\/strong>:<\/p>\n\n\n\n

      \n
    1. SOH-CAH-TOA<\/strong> helps you remember:\n
        \n
      • Sine (sin)<\/strong> = Opposite \/ Hypotenuse<\/li>\n\n\n\n
      • Cosine (cos)<\/strong> = Adjacent \/ Hypotenuse<\/li>\n\n\n\n
      • Tangent (tan)<\/strong> = Opposite \/ Adjacent<\/li>\n<\/ul>\n<\/li>\n\n\n\n
      • Use these steps:\n
          \n
        • Identify the right triangle.<\/li>\n\n\n\n
        • Label the sides: opposite, adjacent, hypotenuse.<\/li>\n\n\n\n
        • Choose the correct trig ratio based on the sides you know and the side or angle you want to find.<\/li>\n\n\n\n
        • Use a calculator (make sure it\u2019s in degree mode<\/strong>) for sin, cos, or tan.<\/li>\n\n\n\n
        • Solve the equation and check your answer.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
        • Example:\n
            \n
          • If you know an angle is 30\u00b0 and the hypotenuse is 10, to find the opposite side<\/strong>:\n
              \n
            • Use: sin(30\u00b0) = opposite \/ 10<\/li>\n\n\n\n
            • 0.5 = opposite \/ 10 \u2192 opposite = 5<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n

              Good luck \u2014 and feel free to send a specific triangle problem if you want help solving it!<\/p>\n\n\n\n

              \"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"

              How many electrons are in Br-? A) 36 B) 4 C) 7 D) 34 E) none of the above 50: please help me with my right triangles & trigonometry homework. Can you explain to me what I have to do in order for me to turn it in tomorrow? T he Correct Answer and Explanation […]<\/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-220231","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/220231","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=220231"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/220231\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=220231"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=220231"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=220231"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}