[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-detail-207912-en":3,"doc-seo-207912-105":30,"detail-sidebar-cat-0-en-105":90},{"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":4,"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},207912,3573418547284,"Graffin","https://eur-avatar.wpscdn.com/davatar_994ba38a5ba835b3df7d355c54d3ed8d",4,"Exam","GCSE Chemistry - Atomic structure - Energy changes","Extra help session materials for GCSE Chemistry covering core foundations of atomic structure and energy changes. Focus areas include defining atoms, elements, compounds and mixtures; describing and drawing atomic structures; interpreting periodic table information such as atomic number and mass number; explaining particle charges and ion formation; calculating electrons and neutrons for ions and atoms; and applying electron shell capacity to write electron configurations. Includes fill-in-the-gap tasks, symbol and table completion, particle data comparisons, separation of salt from water, electron diagram practice up to calcium, and related exam-style questions.","| GCSE Chemistry\u003Cbr>The extra help sessions that you have been invited to are going to cover the following topics: |  |\n| --- | --- |\n| 1. Atom structure\u003Cbr>2. Energy changes\u003Cbr>| |\n| AQA Combined Trilogy\u003Cbr>Chemistry |  |\n\n| Topic 1 : Atomic structure | Taught | Practiced | Mastered |\n| --- | --- | --- | --- |\n| What is an atom, an element, a compound and a mixture? |  |  |  |\n| Describe and draw the structure of the atom. |  |  |  |\n| What are protons, neutrons and electrons and what do the numbers on the periodic table mean? |  |  |  |\n| Can you draw the electron structure of all the elements on the periodic table up to calcium? |  |  |  |\n| Why are atoms not charged? |  |  |  |\n| How do atoms become ions? How do we draw an ions? |  |  |  |\n\nAtoms, elements, compounds and mixtures:  \nChoose from the following words to fill the gaps (there maybe be some extra):  \nelement periodic element two compounds mass radius symbol atoms elements bond iron reactions sulphide chemical separated react atom formula reactions elements chemically unique  \nAtoms:  \nAll substances are made up of a . An a  being the smallest part of an e  that can exist.  \n1. Define an element:  \nEvery e  is represented by a chemical s  and can be found on the p  table.  \n\n| Complete the tables below by finding the right symbol:\u003Cbr>Element Symbol Sodium Chlorine Oxygen K Si\u003Cbr>Compounds:\u003Cbr>Compounds are formed when e  combine through a chemical   and b  together. The compound can be represented using a name and f \u003Cbr>Compounds can only be separated into e  by c r .\u003Cbr>When a mixture of iron and sulphur is heated the iron and sulphur   together to produce    .\u003Cbr>Mixtures:\u003Cbr>A mixture consists of t  or more e  or c  not c  combined. The chemical properties of each substance in the mixture are u \u003Cbr>Mixtures can be s  quite easily by various processes. An example might include separating NaCl (sea salt) from water. |  |  |  |\n| --- | --- | --- | --- |\n| \u003Cbr>1. Draw and label the apparatus used for separating salt from water: |  |  |  |\n|  |  |  |  |\n\n\n|  |\n| --- |\n| \u003Cbr>2. What physical property does distillation rely on to separate the substances |\n| Atoms (more detail):\u003Cbr>Choose from the following words to fill the gaps (there maybe be some extra):\u003Cbr>small very element 10 000 react protons mass protons\u003Cbr>nucleus gain equal charged electrons 0.1 nanometres electrons\u003Cbr>lose neutrons shells protons electrons electrons shells\u003Cbr>charged ion protons neutrons neutrons protons nucleus energy\u003Cbr>Atoms have a small central   , which is made up of   and   Around the nucleus there are s  which hold the orbiting   These s  are sometimes called e  levels\u003Cbr>Atoms are v  s  and typically have a radius of a about   The radius of the n  is about   times smaller than the atom but it contains almost all of the m \u003Cbr>\u003Cbr>Name of Particle Relative Mass Relative Charge |\n\n\n| The atomic (proton number) tells us the number of p  in an atom which also happens to be the number of e .\u003Cbr>When some atoms r  they l  or g e . In this case the number of p  and e  are not e  and therefore the atom is now c  We call ac  atom an i  |\n| --- |\n| \u003Cbr>3. How do you calculate the number of electrons in an ion? Try and workout how many electrons are in Na+ . |\n| The mass number tells us the total number of p  and n  in that element.\u003Cbr>|\n| \u003Cbr>4. How do you calculate the number of neutrons in an atom? |\n| e.g. For Sodium:\u003Cbr>Mass number. = 23 Atomic number. = 11\u003Cbr>Therefore number of neutrons = 23-11 =  12 |\n\nUsing your Periodic Table complete the following table.  \n\n| Element | Atomic No. | Mass No. | Protons | Electrons | Neutrons |\n| --- | --- | --- | --- | --- | --- |\n| C | 6 |  |  |  | 6 |\n| F |  |  | 9 |  |  |\n| Mg |  |  |  | 12 |  |\n| 35Cl |  | 35 |  |  |  |\n| Ca |  |  |  |  | 20 |\n| 238 U |  | 238 |  |  |  |\n| 7Li+ |  |  |  |  |  |\n| 16 O2- |  |  |  |  |  |\n\nIsotopes are atoms of the same   which have the same number of   but different number of    \n\n| Electron Configuration:\u003Cbr>The e","cbCaifOzXlcmoJmY","https://ap.wps.com/l/cbCaifOzXlcmoJmY","pdf",624302,1,12,"English","en",105,"# Topic 1: Atomic structure\n## Atoms, elements, compounds and mixtures\n## Complete symbol and separation tasks\n## Atoms (more detail): particle structure, ions and calculations\n## Electron configuration: shells and outer electrons\n## Draw electron configurations and sodium ion structure\n# Past paper questions","[{\"question\":\"What is an atom, and how do you identify an element and its symbol?\",\"answer\":\"All substances are made of atoms, the smallest part that can exist. An element is represented by a chemical symbol and can be found on the periodic table.\"},{\"question\":\"How do you calculate the number of electrons and neutrons for an ion?\",\"answer\":\"The atomic (proton) number tells the number of protons and also the number of electrons in a neutral atom. For ions, adjust the electron count based on the ion charge; neutrons are found using mass number minus atomic number.\"},{\"question\":\"How do you draw electron configurations and relate them to group number?\",\"answer\":\"Electrons fill shells that represent energy levels (max 2 in the 1st shell, max 8 in the 2nd and 3rd). The outer electrons connect to the group number, helping predict electron configurations and ion structures.\"}]","GCSE Chemistry - Atomic structure - Energy changes | PDF",1788601727,30,{"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":85,"head_meta":87,"extra_data":89,"updated_unix":28},"gcse-chemistry-atomic-structure-energy-changes","",{"@graph":36,"@context":84},[37,53,67],{"@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-atomic-structure-energy-changes/207912/",{"url":52,"name":13,"@type":54,"author":55,"headline":13,"publisher":57,"fileFormat":60,"inLanguage":23,"description":14,"dateModified":61,"datePublished":61,"encodingFormat":60,"isAccessibleForFree":62,"interactionStatistic":63},"DigitalDocument",{"name":9,"@type":56},"Person",{"url":41,"name":58,"@type":59},"DocShare","Organization","application/pdf","2026-09-05",true,{"@type":64,"interactionType":65,"userInteractionCount":4},"InteractionCounter",{"@type":66},"ViewAction",{"@type":68,"mainEntity":69},"FAQPage",[70,76,80],{"name":71,"@type":72,"acceptedAnswer":73},"What is an atom, and how do you identify an element and its symbol?","Question",{"text":74,"@type":75},"All substances are made of atoms, the smallest part that can exist. An element is represented by a chemical symbol and can be found on the periodic table.","Answer",{"name":77,"@type":72,"acceptedAnswer":78},"How do you calculate the number of electrons and neutrons for an ion?",{"text":79,"@type":75},"The atomic (proton) number tells the number of protons and also the number of electrons in a neutral atom. For ions, adjust the electron count based on the ion charge; neutrons are found using mass number minus atomic number.",{"name":81,"@type":72,"acceptedAnswer":82},"How do you draw electron configurations and relate them to group number?",{"text":83,"@type":75},"Electrons fill shells that represent energy levels (max 2 in the 1st shell, max 8 in the 2nd and 3rd). The outer electrons connect to the group number, helping predict electron configurations and ion structures.","https://schema.org",{"og:url":52,"og:type":86,"og:title":13,"og:site_name":58,"og:description":14},"article",{"robots":88,"canonical":52},"index,follow",{"doc_id":7,"site_id":24},{"code":4,"msg":5,"data":91},[92,96,100,103,108,113,118,122,127,130,134],{"id":20,"doc_module":4,"doc_module_name":46,"category_name":93,"show_sort_weight":94,"slug":95},"Story & Novel",90,"story-novel",{"id":47,"doc_module":4,"doc_module_name":46,"category_name":97,"show_sort_weight":98,"slug":99},"Literature",80,"literature",{"id":11,"doc_module":4,"doc_module_name":46,"category_name":12,"show_sort_weight":101,"slug":102},70,"exam",{"id":104,"doc_module":4,"doc_module_name":46,"category_name":105,"show_sort_weight":106,"slug":107},5,"Comic",60,"comic",{"id":109,"doc_module":4,"doc_module_name":46,"category_name":110,"show_sort_weight":111,"slug":112},6,"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":29,"slug":121},8,"Research & Report","research-report",{"id":123,"doc_module":4,"doc_module_name":46,"category_name":124,"show_sort_weight":125,"slug":126},9,"Religion & Spirituality",20,"religion-spirituality",{"id":125,"doc_module":4,"doc_module_name":46,"category_name":128,"show_sort_weight":125,"slug":129},"World Cup","world-cup",{"id":131,"doc_module":4,"doc_module_name":46,"category_name":132,"show_sort_weight":131,"slug":133},10,"Lifestyle","lifestyle",{"id":135,"doc_module":4,"doc_module_name":46,"category_name":136,"show_sort_weight":104,"slug":137},19,"General","general"]