[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-detail-208001-en":3,"doc-seo-208001-105":30,"detail-sidebar-cat-0-en-105":91},{"code":4,"msg":5,"data":6},0,"success",{"doc_id":7,"user_id":8,"nickname":9,"user_avatar":10,"doc_module":4,"category_id":11,"category_name":12,"doc_title":13,"doc_description":14,"doc_content":15,"file_id":16,"file_url":17,"file_type":18,"file_size":19,"view_count":20,"is_deleted":4,"is_public":20,"is_downloadable":20,"audit_status":20,"page_count":21,"language":22,"language_code":23,"site_id":24,"html_lang":23,"table_of_contents":25,"faqs":26,"seo_title":27,"seo_description":14,"update_tm":28,"read_time":29},208001,1374402739827,"Nguyễn Văn Học","https://ap-avatar.wpscdn.com/avatar/14000c97e7351f1a627?x-image-process=image/resize,m_fixed,w_180,h_180&k=1787885694763230660",4,"Exam","GCSE Chemistry - The Structure of an Atom Answers - Practice Questions","AQA, OCR and Edexcel GCSE Chemistry answers focused on the structure of an atom. Covers relative electrical charges of subatomic particles, location of most atomic mass in the nucleus, size and relative mass of protons, neutrons and electrons, and calculating mass number. Includes definitions of isotope and relative atomic mass, worked example for chlorine isotopes, and questions on electronic structure, energy levels, electron arrangements, and periodic table links between atomic and mass numbers.","Visit [http://www.mathsmadeeasy.co.uk/](http://www.mathsmadeeasy.co.uk/ for more fantastic)[ for more fantastic](http://www.mathsmadeeasy.co.uk/ for more fantastic) resources.  \n\n| AQA, OCR, Edexcel |\n| --- |\n| GCSE Science |\n\nGCSE Chemistry  \nThe Structure of an Atom Answers  \nIncludes:  \nRelative electrical charges of subatomic particles  \nSize and mass of atoms  \nRelative atomic mass  \nElectronic Structure  \nTotal Marks: /46  \nMaths Made Easy © Complete Tuition Ltd 2017  \nVisit [http://www.mathsmadeeasy.co.uk/](http://www.mathsmadeeasy.co.uk/ for more fantastic)[ for more fantastic](http://www.mathsmadeeasy.co.uk/ for more fantastic) resources.  \nRelative electrical charges of subatomic particles  \nQ1: What are the relative charges of the particles in the atom?  \nProton: +1 (1 mark)  \nNeutron: 0 (1 mark)  \nElectron: -1 (1 mark)  \n(3 marks)  \nQ2: If there are 6 protons in the nucleus of an atom, how many electrons are in the atom?  \n6 electrons.  \n(1 mark)  \nQ3: Magnesium’s atomic number is 12. How many protons and electrons does it have?  \nProtons: 12  \nElectrons: 12  \n(2 marks)  \nQ4: Label the diagram.  \nProton  \nNeutron  \n(3 marks)  \nSize and mass of atoms  \nQ5: Where is almost all the mass in an atom?  \nThe nucleus.  \n(1 mark)  \nQ6: Fill in this table for the relative masses of parts of the atom.  \n\n| Name of particle | Relative mass |\n| --- | --- |\n| Proton | 1 |\n| Neutron | 1 |\n| Electron | 0 or 1/2000 |\n\n(3 marks)  \nMaths Made Easy © Complete Tuition Ltd 2017  \n\n| Visit [http://www.mathsmadeeasy.co.uk/](http://www.mathsmadeeasy.co.uk/ for more fantastic)[ for more fantastic](http://www.mathsmadeeasy.co.uk/ for more fantastic) resources.\u003Cbr>Q7: What is an atom’s mass number?\u003Cbr>A= The sum of the protons and neutrons. (1 mark)\u003Cbr>(1 mark)\u003Cbr>Q8: Define what is meant by the term isotope.\u003Cbr>A= Atoms of the same element (1 mark) that have different numbers of neutrons (1 mark) .\u003Cbr>(2 marks)\u003Cbr>Q9: Label the diagram for what each number represents in the periodic table.\u003Cbr>23\u003Cbr>Na\u003Cbr>11\u003Cbr>A = Mass number\u003Cbr>A= Atomic number\u003Cbr>(2 marks)\u003Cbr>Q10: For the following elements. State the number of protons, electrons and neutrons. |  |\n| --- | --- |\n| \u003Cbr>80\u003Cbr>Br\u003Cbr>35 | Protons: 20\u003Cbr>Neutrons: 20\u003Cbr>Electrons: 20\u003Cbr>Protons: 12\u003Cbr>Neutrons: 12\u003Cbr>Electrons: 12\u003Cbr>Protons: 35\u003Cbr>Neutrons: 45\u003Cbr>Electrons: 35 |\n| (9 marks)\u003Cbr>Relative atomic mass\u003Cbr>Q11: Define relative atomic mass.\u003Cbr>A= The average value (1 mark) that takes into account the abundance of the isotopes of the element (1 mark) .\u003Cbr>(2 marks)\u003Cbr>Maths Made Easy © Complete Tuition Ltd 2017 |  |\n\n\n| Visit [http://www.mathsmadeeasy.co.uk/](http://www.mathsmadeeasy.co.uk/ for more fantastic)[ for more fantastic](http://www.mathsmadeeasy.co.uk/ for more fantastic) resources.\u003Cbr>Q12: Chlorine is present as two isotopes. Calculate its relative atomic mass, with the following information. You must show your working. |  |  |  |\n| --- | --- | --- | --- |\n| 35\u003Cbr>Cl\u003Cbr>17 | 76% of chlorine. | 37\u003Cbr>Cl\u003Cbr>17 | 24% of chlorine. |\n| 􀜴􀝁􀝈􀜽􀝐􀝅􀝒􀝁 􀜽􀝐􀝋􀝉􀝅􀜿 􀝉􀜽􀝏􀝏 = 􀝐~~ ~~􀝐􀝋􀝋􀝐􀝐􀜽􀜽􀝈􀝈􀝊􀝉􀜽􀝑􀝉􀝏􀜾􀝏􀝁􀝋􀝎􀝂􀝋􀜽􀝂􀝐􀝋􀜽􀝐􀝉􀝏􀝋􀝉􀝏\u003Cbr>Therefore:\u003Cbr>􀜴􀝁􀝈􀜽􀝐􀝅􀝒􀝁 􀜽􀝐􀝋􀝉􀝅􀜿 􀝉􀜽􀝏􀝏 = (35∗7624)7(367∗24)\u003Cbr>(2660)+888\u003Cbr>=\u003Cbr>100\u003Cbr>35.5\u003Cbr>No marks for simply stating the answer from memory\u003Cbr>(4 marks)\u003Cbr>Maths Made Easy © Complete Tuition Ltd 2017 |  |  |  |\n\n\n| Visit [http://www.mathsmadeeasy.co.uk/](http://www.mathsmadeeasy.co.uk/ for more fantastic)[ for more fantastic](http://www.mathsmadeeasy.co.uk/ for more fantastic) resources.\u003Cbr>Electronic Structure\u003Cbr>Q13: Explain how electrons arrange themselves in an atom?\u003Cbr>A= The electrons occupy energy levels or shells (1 mark) . They occupy the lowest energy level first (1 mark) . 2 electrons can occupy the first, and 8 thereafter (1 mark) .\u003Cbr>(3 marks)\u003Cbr>Q14: For the following elements, state the number of electrons. Then, draw a diagram to represent the arrangement of electrons. |  |\n| --- | --- |\n| 23\u003Cbr>Na\u003Cbr>11\u003Cbr>35\u003Cbr>Cl\u003Cbr>17 | \u003Cbr>(3 marks)\u003Cbr>|\n| Maths Made Easy ©","cbCaimTzjaGUMpLC","https://ap.wps.com/l/cbCaimTzjaGUMpLC","pdf",850962,1,6,"English","en",105,"# GCSE Chemistry\n## The Structure of an Atom Answers\n### Relative charges and particle properties\n### Size and mass of atoms\n### Relative atomic mass and isotopes\n### Electronic structure","[{\"question\":\"What are the relative charges of protons, neutrons and electrons?\",\"answer\":\"Protons have a relative charge of +1, neutrons have 0, and electrons have -1.\"},{\"question\":\"If an atom has 6 protons, how many electrons does it have?\",\"answer\":\"It has 6 electrons.\"},{\"question\":\"How is relative atomic mass calculated for an element with two isotopes?\",\"answer\":\"Relative atomic mass is the average value taking into account the abundance of each isotope; the chlorine question requires showing working using the given percentages.\"}]","GCSE Chemistry - The Structure of an Atom Answers - Practice Questions | PDF",1788602057,15,{"code":4,"msg":31,"data":32},"ok",{"site_id":24,"language":23,"slug":33,"title":13,"keywords":34,"description":14,"schema_data":35,"social_meta":86,"head_meta":88,"extra_data":90,"updated_unix":28},"gcse-chemistry-the-structure-of-an-atom-answers-practice-questions","",{"@graph":36,"@context":85},[37,53,68],{"@type":38,"itemListElement":39},"BreadcrumbList",[40,44,48,51],{"item":41,"name":42,"@type":43,"position":20},"https://docshare.wps.com","Home","ListItem",{"item":45,"name":46,"@type":43,"position":47},"https://docshare.wps.com/document/","Document",2,{"item":49,"name":12,"@type":43,"position":50},"https://docshare.wps.com/document/exam/",3,{"item":52,"name":13,"@type":43,"position":11},"https://docshare.wps.com/document/gcse-chemistry-the-structure-of-an-atom-answers-practice-questions/208001/",{"url":52,"name":13,"@type":54,"author":55,"headline":13,"publisher":57,"fileFormat":60,"inLanguage":23,"description":14,"dateModified":61,"datePublished":62,"encodingFormat":60,"isAccessibleForFree":63,"interactionStatistic":64},"DigitalDocument",{"name":9,"@type":56},"Person",{"url":41,"name":58,"@type":59},"DocShare","Organization","application/pdf","2026-09-06","2026-09-05",true,{"@type":65,"interactionType":66,"userInteractionCount":20},"InteractionCounter",{"@type":67},"ViewAction",{"@type":69,"mainEntity":70},"FAQPage",[71,77,81],{"name":72,"@type":73,"acceptedAnswer":74},"What are the relative charges of protons, neutrons and electrons?","Question",{"text":75,"@type":76},"Protons have a relative charge of +1, neutrons have 0, and electrons have -1.","Answer",{"name":78,"@type":73,"acceptedAnswer":79},"If an atom has 6 protons, how many electrons does it have?",{"text":80,"@type":76},"It has 6 electrons.",{"name":82,"@type":73,"acceptedAnswer":83},"How is relative atomic mass calculated for an element with two isotopes?",{"text":84,"@type":76},"Relative atomic mass is the average value taking into account the abundance of each isotope; the chlorine question requires showing working using the given percentages.","https://schema.org",{"og:url":52,"og:type":87,"og:title":13,"og:site_name":58,"og:description":14},"article",{"robots":89,"canonical":52},"index,follow",{"doc_id":7,"site_id":24},{"code":4,"msg":5,"data":92},[93,97,101,104,109,113,118,123,128,131,135],{"id":20,"doc_module":4,"doc_module_name":46,"category_name":94,"show_sort_weight":95,"slug":96},"Story & Novel",90,"story-novel",{"id":47,"doc_module":4,"doc_module_name":46,"category_name":98,"show_sort_weight":99,"slug":100},"Literature",80,"literature",{"id":11,"doc_module":4,"doc_module_name":46,"category_name":12,"show_sort_weight":102,"slug":103},70,"exam",{"id":105,"doc_module":4,"doc_module_name":46,"category_name":106,"show_sort_weight":107,"slug":108},5,"Comic",60,"comic",{"id":21,"doc_module":4,"doc_module_name":46,"category_name":110,"show_sort_weight":111,"slug":112},"Technology",50,"technology",{"id":114,"doc_module":4,"doc_module_name":46,"category_name":115,"show_sort_weight":116,"slug":117},7,"Healthcare",40,"healthcare",{"id":119,"doc_module":4,"doc_module_name":46,"category_name":120,"show_sort_weight":121,"slug":122},8,"Research & Report",30,"research-report",{"id":124,"doc_module":4,"doc_module_name":46,"category_name":125,"show_sort_weight":126,"slug":127},9,"Religion & Spirituality",20,"religion-spirituality",{"id":126,"doc_module":4,"doc_module_name":46,"category_name":129,"show_sort_weight":126,"slug":130},"World Cup","world-cup",{"id":132,"doc_module":4,"doc_module_name":46,"category_name":133,"show_sort_weight":132,"slug":134},10,"Lifestyle","lifestyle",{"id":136,"doc_module":4,"doc_module_name":46,"category_name":137,"show_sort_weight":105,"slug":138},19,"General","general"]