Correct Answers:<\/strong><\/p>\n\n\n\n Electronic configuration of Barium (Ba):<\/strong> a) Valence electrons in Barium:<\/strong> b) More electronegative element between Ba and Cd:<\/strong> Explanation (300 words):<\/strong> The complete electron configuration for Barium is: The outermost electrons in Barium reside in the 6s orbital. These two electrons are considered its valence electrons<\/strong>. Valence electrons are those found in the outermost energy level of an atom and are crucial in determining how an element reacts chemically.<\/p>\n\n\n\n When comparing electronegativity, which is a measure of how strongly an atom attracts electrons in a chemical bond, Cadmium (Cd) and Barium (Ba) show different tendencies. Cadmium, with an atomic number of 48, is found in Group 12 and Period 5, while Barium lies in Period 6. Barium, being further down the periodic table and possessing more electron shells, has a weaker pull on bonding electrons due to increased shielding and distance from the nucleus.<\/p>\n\n\n\n Cadmium, being smaller in size with fewer energy levels and a higher effective nuclear charge relative to its size, has a slightly stronger tendency to attract electrons in bonds. Therefore, Cadmium is more electronegative than Barium<\/strong>. This trend aligns with the general principle that electronegativity decreases down a group and increases across a period from left to right.<\/p>\n\n\n\n Write the complete electronic configuration (no abbreviations) for barium (Ba): (3 pts) a) How many valence electrons does barium have? (3 pts) b) Which material Is more electronegative: Ba or Cd? (3 pts) The Correct Answer and Explanation is: Correct Answers: Electronic configuration of Barium (Ba):1s\u00b2 2s\u00b2 2p\u2076 3s\u00b2 3p\u2076 4s\u00b2 3d\u00b9\u2070 4p\u2076 5s\u00b2 4d\u00b9\u2070 […]<\/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-235614","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/235614","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=235614"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/235614\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=235614"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=235614"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=235614"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
1s\u00b2 2s\u00b2 2p\u2076 3s\u00b2 3p\u2076 4s\u00b2 3d\u00b9\u2070 4p\u2076 5s\u00b2 4d\u00b9\u2070 5p\u2076 6s\u00b2<\/p>\n\n\n\n
Barium has 2 valence electrons<\/strong>.<\/p>\n\n\n\n
Cadmium (Cd)<\/strong> is more electronegative than Barium (Ba).<\/p>\n\n\n\n
\n\n\n\n
Barium (atomic number 56) is a member of Group 2 in the periodic table, classified as an alkaline earth metal. To determine its full electronic configuration, the electrons must be filled in order of increasing energy levels. Starting from hydrogen\u2019s orbital (1s\u00b2), electrons are progressively placed into orbitals following the Aufbau principle. The final orbital occupied by Barium is 6s\u00b2, after filling all the lower-energy orbitals.<\/p>\n\n\n\n
1s\u00b2 2s\u00b2 2p\u2076 3s\u00b2 3p\u2076 4s\u00b2 3d\u00b9\u2070 4p\u2076 5s\u00b2 4d\u00b9\u2070 5p\u2076 6s\u00b2<\/strong><\/p>\n\n\n\n![\"\"](\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner8-614.jpeg\")
<\/figure>\n","protected":false},"excerpt":{"rendered":"