[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-detail-207974-en":3,"doc-seo-207974-105":30,"detail-sidebar-cat-0-en-105":89},{"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},207974,2336474466712,"Quinn Holloway","https://ap-avatar.wpscdn.com/davatar_a8503ba1806abce46bf441b54a3ca4cd",4,"Exam","GCSE Core Chemistry (C1) - Atoms and the Periodic Table - Student Overview","Student overview of GCSE Core Chemistry focusing on atomic structure and the periodic table. Covers group trends with clear comparisons of Group 1 (alkali metals), Group 7 (halogens), and noble gases, including typical physical/chemical behaviors, key reactions, and reactivity explanations. Includes development of the periodic table through Dimitri Mendeleev, plus foundational definitions of elements, mixtures, compounds, isotopes, ions, reactants, products, groups, and periods. Designed to support revision with equation examples and trend reasoning.","C5 Atoms and the Periodic table  \nStructure of the atom-Atomic structure-AQA-GCSE Combined Science Revision-AQA Trilogy-BBC Bitesize  \nGCSE Core Chemistry (C1) Drawing Atoms-YouTube  \nGroups in the Periodic Table  \n\n|  | Physical Properties | Chemical Properties | Equation | Trends/ Explanation |\n| --- | --- | --- | --- | --- |\n| Group 1\u003Cbr>(Alkali metals) | Soft, low density. | React vigorously with water releasing Hydrogen | Sodium + Water → Sodium Hydroxide + Hydrogen 2Na + 2H2O → 2NaOH + H2 | More reactive as you go down, outermost electron further from the nucleus so its easier to lose |\n| Group 7 (Halogens) | Low melting point, exist as pair (O2) | React with group 1 metals to form compounds. Can carry out displacement reactions | Sodium + Chloride → Sodium Chloride Sodium Bromide + Chlorine → Sodium Chloride + Bromine | Higher melting point as you go down the group,(higher molecular mass) .\u003Cbr>Less reactive as you go down the group |\n| Group ) Noble gases | Low melting point/boiling point.\u003Cbr>Eight electrons in outer shell (except Helium) | Unreactive as they have a full outer shell | N/A | Higher melting point and boiling point as you go down the group (due to increase in density |\n\n| AQA GCSE Chemistry Development of the |\n| --- |\n| Periodic Table – YouTube\u003Cbr>Mendeleev's periodic table-The periodic |\n| table-AQA-GCSE Chemistry (Single Science) Revision-AQA-BBC Bitesize |\n\n\n| Key Terms | Definitions |\n| --- | --- |\n| Dimitri Mendeleev | A Russian Chemist, who in 1869 published a Periodic Table containing gaps |\n| Periodic Table | The table which organises the 118 elements based on atomic structure |\n| Isotope | Two atoms with the same number of protons and electrons but a different number of neutrons |\n| Metal | An element which loses electrons to form a positive charge |\n| Non Metal | An element which gains electrons to form a negative charge |\n| Ion | An element with a positive or negative charge. |\n\n\n| Key Terms | Definitions |\n| --- | --- |\n| Element | A substance that only contains one type of atom |\n| Mixture | A mixture is two or more different atoms which are not chemically bonded-can be separated |\n| Compound | Two or more elements that are chemically bonded |\n| Group | The columns on the Periodic Table |\n| Period | The rows on the Periodic Table |\n| Reactant | What you start with in a chemical reaction |\n| Product | What is made in chemical reaction |","cbCaikyjD3ed4XOA","https://ap.wps.com/l/cbCaikyjD3ed4XOA","pdf",220782,1,2,"English","en",105,"# Atoms and the Periodic Table\n## Atomic structure and the periodic table development\n## Group trends: Group 1, Group 7, and noble gases\n## Key terms and definitions","[{\"question\":\"What does the periodic table organize, and what is it based on?\",\"answer\":\"The periodic table organizes the 118 elements according to atomic structure. It groups elements into columns and rows to reflect their properties.\"},{\"question\":\"How do the reactivity trends change in Group 1 and Group 7?\",\"answer\":\"Group 1 metals become more reactive as you go down the group because the outer electron is further from the nucleus, making it easier to lose. Group 7 halogens have less reactivity as you go down, with melting/boiling points generally increasing.\"},{\"question\":\"What are isotopes and how do they differ from regular atoms?\",\"answer\":\"Isotopes are atoms with the same number of protons and electrons, but a different number of neutrons. This means they are the same element but with different neutron counts.\"}]","GCSE Core Chemistry (C1) - Atoms and the Periodic Table - Student Overview | PDF",1788601955,5,{"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":84,"head_meta":86,"extra_data":88,"updated_unix":28},"gcse-core-chemistry-c1-atoms-and-the-periodic-table-student-overview","",{"@graph":36,"@context":83},[37,52,66],{"@type":38,"itemListElement":39},"BreadcrumbList",[40,44,47,50],{"item":41,"name":42,"@type":43,"position":20},"https://docshare.wps.com","Home","ListItem",{"item":45,"name":46,"@type":43,"position":21},"https://docshare.wps.com/document/","Document",{"item":48,"name":12,"@type":43,"position":49},"https://docshare.wps.com/document/exam/",3,{"item":51,"name":13,"@type":43,"position":11},"https://docshare.wps.com/document/gcse-core-chemistry-c1-atoms-and-the-periodic-table-student-overview/207974/",{"url":51,"name":13,"@type":53,"author":54,"headline":13,"publisher":56,"fileFormat":59,"inLanguage":23,"description":14,"dateModified":60,"datePublished":60,"encodingFormat":59,"isAccessibleForFree":61,"interactionStatistic":62},"DigitalDocument",{"name":9,"@type":55},"Person",{"url":41,"name":57,"@type":58},"DocShare","Organization","application/pdf","2026-09-05",true,{"@type":63,"interactionType":64,"userInteractionCount":4},"InteractionCounter",{"@type":65},"ViewAction",{"@type":67,"mainEntity":68},"FAQPage",[69,75,79],{"name":70,"@type":71,"acceptedAnswer":72},"What does the periodic table organize, and what is it based on?","Question",{"text":73,"@type":74},"The periodic table organizes the 118 elements according to atomic structure. It groups elements into columns and rows to reflect their properties.","Answer",{"name":76,"@type":71,"acceptedAnswer":77},"How do the reactivity trends change in Group 1 and Group 7?",{"text":78,"@type":74},"Group 1 metals become more reactive as you go down the group because the outer electron is further from the nucleus, making it easier to lose. Group 7 halogens have less reactivity as you go down, with melting/boiling points generally increasing.",{"name":80,"@type":71,"acceptedAnswer":81},"What are isotopes and how do they differ from regular atoms?",{"text":82,"@type":74},"Isotopes are atoms with the same number of protons and electrons, but a different number of neutrons. 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