[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-665335-105":59,"doc-detail-665335-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","dot-and-cross-diagrams-worksheet-students","Dot-and-Cross Diagrams Worksheet - Students","","Worksheet on chemical bonding using dot-and-cross (Lewis) diagrams. Covers Part A electronic configurations, Part B ionic compounds with rules for drawing valence electron transfer and completing an ions/ratio/formula table, and Part B/C diagram practice for ionic and covalent species. Includes simulation-based building instructions, completion of statements and tables for shared pairs, lone pairs and bond types, plus a section to spot mistakes in student diagrams. Ends with charge-based deduction and electron-focused explanations, and a comparison of bond formation.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":20,"@type":76,"position":81},"https://docshare.wps.com/document/exam/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/dot-and-cross-diagrams-worksheet-students/665335/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/dot-and-cross-diagrams-worksheet-students/665335.png","ImageObject",300,407,{"name":92,"@type":93},"Anna Hans","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-30","2026-10-29",true,{"@type":102,"interactionType":103,"userInteractionCount":19},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What do the dot-and-cross diagrams represent for ionic compounds?","Question",{"text":112,"@type":113},"They show valence electrons being transferred from the metal to the non-metal. The worksheet uses × for electrons from Na and • for electrons from Cl, and each ion is drawn with its electrons arranged in shells.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How do you complete the covalent bond statements and tables?",{"text":117,"@type":113},"Use the idea that a covalent bond involves a shared pair of electrons, that a double bond has two shared pairs, and that unshared outer electrons are non-bonding lone pairs. Then count shared pairs, identify bond types, and note lone pairs on the central atom where applicable.",{"name":119,"@type":110,"acceptedAnswer":120},"What is expected in the 'Spot the Mistake' section?",{"text":121,"@type":113},"For each given student diagram (sodium chloride, magnesium oxide, water, nitrogen), identify the error and provide a brief correction that states what should be different in the dot-and-cross representation.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},665335,1793298357,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":19,"category_name":20,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":19,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":29,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":129,"read_time":143},5909892332657,"https://ap-avatar.wpscdn.com/davatar_994ba38a5ba835b3df7d355c54d3ed8d","Chemical Bonding  \nDot-and-Cross Diagrams  \nSimulation: [edtechsims.com/dot-and-cross-diagrams](edtechsims.com/dot-and-cross-diagrams)[ ](edtechsims.com/dot-and-cross-diagrams)[Name: ____________________ Class: ______ Date:](Name: ____________________ Class: ______ Date:)  \nPart A: Electronic Configurations  \n_______  \nA1 Complete Table 1. [8]  \n\n| Element | Proton number | Electronic configuration | Valence electrons | To get a noble gas configuration, it… | Ion formed |\n| --- | --- | --- | --- | --- | --- |\n| Sodium, Na | 11 | 2.8.1 | 1 | Loses 1 electron | Na⁺ |\n| Magnesium, Mg | 12 |  |  |  |  |\n| Calcium, Ca | 20 |  |  |  |  |\n| Oxygen, O | 8 | 2.6 | 6 | Gains 2 (or shares 2) | O²⁻ |\n| Chlorine, Cl | 17 |  |  |  |  |\n| Nitrogen, N | 7 |  |  |  |  |\n| Carbon, C | 6 |  |  |  |  |\n| Hydrogen, H | 1 |  |  |  |  |\n\nTable 1  \nPart B: Ionic Compounds  \nOn the sim: Open the Builder and choose Ionic compounds. Build NaCl, MgO and MgCl₂ , transferring electrons from the metal to the non-metal.  \nFig. 1 shows the dot-and-cross diagram of sodium chloride, with all shells shown. (× = electrons from Na, • = electrons from Cl)  \nFig. 1  \nB1 Complete the rules for drawing ionic dot-and-cross diagrams. [4]  \nThe metal atom ______________ its valence electrons and the non-metal atom ______________  \nthem. Each ion is drawn inside ______________ , with its ______________ written at the top right.  \nB2 Complete Table 2. [6]  \n\n| Compound | Electrons lost by each metal atom | Cation | Anion | Ratio of cation : anion | Formula |\n| --- | --- | --- | --- | --- | --- |\n| Sodium chloride | 1 | Na⁺ | Cl⁻ | 1 : 1 | NaCl |\n| Magnesium oxide |  |  |  |  |  |\n| Magnesium chloride |  |  |  |  |  |\n| Sodium oxide |  |  |  |  |  |\n| Calcium fluoride |  |  |  |  |  |\n| Potassium sulfide |  |  |  |  |  |\n\nTable 2  \nB3 Draw dot-and-cross diagrams, showing all shells, for magnesium oxide and calcium fluoride. [4]  \nMagnesium oxide, MgO  \nCalcium fluoride, CaF₂  \nOn the sim: In the Builder, choose Covalent molecules. Build H₂O, NH₃ , CO₂ and N₂ , placing shared pairs in the overlap between atoms.  \nC1 Complete the sentences. [3]  \nIn a covalent bond, a pair of electrons is   between two non-metal atoms. A double bond contains   shared pairs. Electrons in the outer shell that are not shared are called   (non-bonding electrons) .  \nC2 Complete Table 3. [10]  \n\n| Molecule | Number of shared pairs in the molecule | Type(s) of bond | Lone pairs on the central atom |\n| --- | --- | --- | --- |\n| H₂ | 1 | Single | 0 (on each H) |\n| Cl₂ |  |  |  |\n| HCl |  |  |  |\n| H₂O | 2 | Single | 2 (on O) |\n| NH₃ |  |  |  |\n| CH₄ |  |  |  |\n| O₂ |  |  |  |\n| N₂ |  |  |  |\n| CO₂ |  |  |  |\n| C₂ H₄ |  |  |  |\n\nTable 3  \nC3 Draw dot-and-cross diagrams, showing all shells, for water, ammonia, carbon dioxide and  \nnitrogen. [8]  \nWater, H₂O  \nAmmonia, NH₃  \nCarbon dioxide, CO₂  \nNitrogen, N₂  \nPart D: Spot the Mistake  \nOn the sim: Open the Spot the Mistake tab and try the diagrams there. Then find the mistake in each diagram below.  \nD1 A student's diagram of sodium chloride. [2]  \nMistake and correction:  \n................................ ................................ ................................ ................................ .........................  \nD2 A student's diagram of magnesium oxide. [2]  \nMistake and correction:  \n................................ ................................ ................................ ................................ .........................  \nD3 A student's diagram of water. [2]  \nMistake and correction:  \nD4 A student's diagram of nitrogen. [2]  \nMistake and correction:  \n................................ ................................ ................................ ................................ .........................  \nE1 Aluminium (2 .8.3) reacts with oxygen (2 .6) to form aluminium oxide.  \n(a) State the charges on the two ions formed. [2]  \n...............................................................................","cbCaijZ0oZZBWtBn","https://ap.wps.com/l/cbCaijZ0oZZBWtBn","pdf",276673,"English","# Chemical Bonding\n## Part A: Electronic Configurations\n## Part B: Ionic Compounds\n## Part C: Covalent Molecules\n## Part D: Spot the Mistake\n## Part E: Additional Questions","[{\"question\":\"What do the dot-and-cross diagrams represent for ionic compounds?\",\"answer\":\"They show valence electrons being transferred from the metal to the non-metal. The worksheet uses × for electrons from Na and • for electrons from Cl, and each ion is drawn with its electrons arranged in shells.\"},{\"question\":\"How do you complete the covalent bond statements and tables?\",\"answer\":\"Use the idea that a covalent bond involves a shared pair of electrons, that a double bond has two shared pairs, and that unshared outer electrons are non-bonding lone pairs. Then count shared pairs, identify bond types, and note lone pairs on the central atom where applicable.\"},{\"question\":\"What is expected in the 'Spot the Mistake' section?\",\"answer\":\"For each given student diagram (sodium chloride, magnesium oxide, water, nitrogen), identify the error and provide a brief correction that states what should be different in the dot-and-cross representation.\"}]","Dot-and-Cross Diagrams Worksheet - Students | PDF",15]