Which ion has the same electron configuration as Kr? <\/p>\n\n\n\n
Rb+ <\/p>\n\n\n\n
Br- <\/p>\n\n\n\n
Se2- <\/p>\n\n\n\n
All of these?<\/p>\n\n\n\n
The correct answer and explanation is:<\/mark><\/strong><\/p>\n\n\n\n Correct Answer: All of these<\/strong><\/p>\n\n\n\n Explanation:<\/strong><\/p>\n\n\n\n The electron configuration of a neutral krypton (Kr) atom is:<\/p>\n\n\n\n Kr: 1s\u00b2 2s\u00b2 2p\u2076 3s\u00b2 3p\u2076 4s\u00b2 3d\u00b9\u2070 4p\u2076<\/strong><\/p>\n\n\n\n This configuration totals 36 electrons. Any ion that also has 36 electrons will share this electron configuration.<\/p>\n\n\n\n Let us examine each ion one by one:<\/p>\n\n\n\n Each of these ions adjusts its electron count by either losing or gaining electrons to achieve the stable noble gas configuration of krypton. This process is a common behavior among elements in order to attain a full valence shell, which provides greater chemical stability.<\/p>\n\n\n\n Since Rb\u207a<\/strong>, Br\u207b<\/strong>, and Se\u00b2\u207b<\/strong> each end up with 36 electrons, and krypton also has 36 electrons, they all have the same electron configuration<\/strong>.<\/p>\n\n\n\n Conclusion:<\/strong> The correct answer is All of these<\/strong> because each of the ions achieves the same total number of electrons as krypton, resulting in identical electron configurations.<\/p>\n","protected":false},"excerpt":{"rendered":" Which ion has the same electron configuration as Kr? Rb+ Br- Se2- All of these? The correct answer and explanation is: Correct Answer: All of these Explanation: The electron configuration of a neutral krypton (Kr) atom is: Kr: 1s\u00b2 2s\u00b2 2p\u2076 3s\u00b2 3p\u2076 4s\u00b2 3d\u00b9\u2070 4p\u2076 This configuration totals 36 electrons. Any ion that also […]<\/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-31345","post","type-post","status-publish","format-standard","hentry","category-quiz-questions"],"_links":{"self":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/31345","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=31345"}],"version-history":[{"count":1,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/31345\/revisions"}],"predecessor-version":[{"id":31346,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/31345\/revisions\/31346"}],"wp:attachment":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/media?parent=31345"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/categories?post=31345"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/tags?post=31345"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}\n
A neutral rubidium (Rb) atom has 37 electrons. When it loses one electron to form Rb\u207a, it has 36 electrons remaining. Therefore, Rb\u207a has the same electron configuration as Kr<\/strong>.<\/li>\n\n\n\n
A neutral bromine (Br) atom has 35 electrons. When it gains one electron to form Br\u207b, it has 36 electrons. So, Br\u207b also shares the same electron configuration as Kr<\/strong>.<\/li>\n\n\n\n
A neutral selenium (Se) atom has 34 electrons. When it gains two electrons to become Se\u00b2\u207b, it has 36 electrons. This means Se\u00b2\u207b also has the same configuration as Kr<\/strong>.<\/li>\n<\/ol>\n\n\n\n