[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-seo-491894-105":3,"detail-sidebar-cat-0-en-105":81,"doc-detail-491894-en":131},{"code":4,"msg":5,"data":6},0,"ok",{"site_id":7,"language":8,"slug":9,"title":10,"keywords":11,"description":12,"schema_data":13,"social_meta":74,"head_meta":76,"extra_data":78,"updated_unix":80},105,"en","chemistry-year-9-terms-1-2","Chemistry-Year-9-Terms-1-2","","Highsted Knowledge Organiser Chemistry C1 covers core concepts across atomic structure, the periodic table, and separation and chemical change topics. Key sections explain atoms, atomic nucleus, atomic number, isotopes, mass number and relative atomic mass, alongside electron energy levels and electronic structures. It includes models of atomic structure (Thompson, Rutherford, Bohr, Chadwick) and distillation as a method for separating liquids with different boiling points. It also introduces challenge questions and brief suggested reading.",{"@graph":14,"@context":73},[15,34,56],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/document/","Document",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/document/exam/","Exam",3,{"item":32,"name":10,"@type":21,"position":33},"https://docshare.wps.com/document/chemistry-year-9-terms-1-2/491894/",4,{"url":32,"name":10,"@type":35,"image":36,"author":41,"headline":10,"publisher":44,"fileFormat":47,"inLanguage":8,"description":12,"dateModified":48,"datePublished":49,"encodingFormat":47,"isAccessibleForFree":50,"interactionStatistic":51},"DigitalDocument",{"url":37,"@type":38,"width":39,"height":40},"https://docshare.wps.com/thumbnails/chemistry-year-9-terms-1-2/491894.png","ImageObject",300,407,{"name":42,"@type":43},"AfterMidnight","Person",{"url":19,"name":45,"@type":46},"DocShare","Organization","application/pdf","2026-11-08","2026-10-01",true,{"@type":52,"interactionType":53,"userInteractionCount":55},"InteractionCounter",{"@type":54},"ViewAction",13,{"@type":57,"mainEntity":58},"FAQPage",[59,65,69],{"name":60,"@type":61,"acceptedAnswer":62},"How do atoms, elements and compounds relate?","Question",{"text":63,"@type":64},"An element is a pure substance made from one type of atom. A compound contains more than one type of atom chemically bonded together. A mixture contains different substances not chemically bonded together.","Answer",{"name":66,"@type":61,"acceptedAnswer":67},"What is the difference between atomic number and mass number?",{"text":68,"@type":64},"Atomic number is the number of protons in the nucleus and equals the number of electrons. Mass number is the total number of protons and neutrons in the nucleus.",{"name":70,"@type":61,"acceptedAnswer":71},"How does distillation separate liquids in a mixture?",{"text":72,"@type":64},"Distillation separates liquids that have different boiling points. It involves evaporating the liquid and then condensing the vapour back into a liquid.","https://schema.org",{"og:url":32,"og:type":75,"og:title":10,"og:site_name":45,"og:description":12},"article",{"robots":77,"canonical":32},"index,follow",{"doc_id":79,"site_id":7},491894,1791351635,{"code":4,"msg":82,"data":83},"success",[84,88,92,95,100,105,110,115,120,123,127],{"id":22,"doc_module":4,"doc_module_name":25,"category_name":85,"show_sort_weight":86,"slug":87},"Story & Novel",90,"story-novel",{"id":26,"doc_module":4,"doc_module_name":25,"category_name":89,"show_sort_weight":90,"slug":91},"Literature",80,"literature",{"id":33,"doc_module":4,"doc_module_name":25,"category_name":29,"show_sort_weight":93,"slug":94},70,"exam",{"id":96,"doc_module":4,"doc_module_name":25,"category_name":97,"show_sort_weight":98,"slug":99},5,"Comic",60,"comic",{"id":101,"doc_module":4,"doc_module_name":25,"category_name":102,"show_sort_weight":103,"slug":104},6,"Technology",50,"technology",{"id":106,"doc_module":4,"doc_module_name":25,"category_name":107,"show_sort_weight":108,"slug":109},7,"Healthcare",40,"healthcare",{"id":111,"doc_module":4,"doc_module_name":25,"category_name":112,"show_sort_weight":113,"slug":114},8,"Research & Report",30,"research-report",{"id":116,"doc_module":4,"doc_module_name":25,"category_name":117,"show_sort_weight":118,"slug":119},9,"Religion & Spirituality",20,"religion-spirituality",{"id":118,"doc_module":4,"doc_module_name":25,"category_name":121,"show_sort_weight":118,"slug":122},"World Cup","world-cup",{"id":124,"doc_module":4,"doc_module_name":25,"category_name":125,"show_sort_weight":124,"slug":126},10,"Lifestyle","lifestyle",{"id":128,"doc_module":4,"doc_module_name":25,"category_name":129,"show_sort_weight":96,"slug":130},19,"General","general",{"code":4,"msg":82,"data":132},{"doc_id":79,"user_id":133,"nickname":42,"user_avatar":134,"doc_module":4,"category_id":33,"category_name":29,"doc_title":10,"doc_description":12,"doc_content":135,"file_id":136,"file_url":137,"file_type":138,"file_size":139,"view_count":55,"is_deleted":4,"is_public":22,"is_downloadable":22,"audit_status":22,"page_count":96,"language":140,"language_code":8,"site_id":7,"html_lang":8,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":12,"update_tm":144,"read_time":55,"preview_page_count":4},962090896061,"https://ap-avatar.wpscdn.com/davatar_9964176cb1d06d4a9deccf72a44ae3dc","Highsted Knowledge Organiser, Chemistry, C1 Part A, ATOMIC STRUCTURE AND THE PERIODIC TABLE  \n\n| What I need to know\u003Cbr>Atoms Elements Compounds\u003Cbr>Chemical equations Mixtures and chromatography Separation techniques Distillation | Key Vocabulary:\u003Cbr>Alkali metals: The elements in Group 1 of the periodic table.\u003Cbr>Atom: The smallest part of an element that can exist. All substances are made up of atoms.\u003Cbr>Atomic nucleus: Positively charged object composed of protons and neutrons at the centre of every atom with one or more electrons orbiting it.\u003Cbr>Atomic number: The number of protons in the nucleus\u003Cbr>Isotope: Atoms of the same element with the same number of protons but a different number of neutrons.\u003Cbr>Mass number: The total number of protons and neutrons in the nucleus.\u003Cbr>Relative atomic mass: An average value that takes account of the abundance of the isotopes of the element. |\n| --- | --- |\n| Student reference point\u003Cbr>Elements, Mixtures and Compounds\u003Cbr>Rule 1 – If two identical elements combine then the name doesn’t change Rule 2 – When two elements join the end is usually   ide. Rule 3 – When three or more elements combine and one of them is oxygen the ending is   ate\u003Cbr>An element is just a pure substance, for example oxygen (O2) A compound is a material that is made up of more than one type of atom chemically bonded together, for example Carbon Dioxide (CO2) A mixture contains two or more different types of compounds or elements that are not chemically bonded together\u003Cbr>Atomic Structure\u003Cbr>1. In 1901 JJ Thompson suggested the plum pudding model – this was an atom that the atom is a ball of positive charge with negative electrons embedded in it.\u003Cbr>2. In 1909 Rutherford changed the accepted model using his alpha scattering experiment. The results from the alpha particle scattering experiment led to the conclusion that the mass of an atom was concentrated at the centre (nucleus) and that the nucleus was charged. This nuclear model replaced the plum pudding model.\u003Cbr>3. Niels Bohr adapted the nuclear model by suggesting that electrons orbit the nucleus at specific distances.\u003Cbr>4. 20 years later, James Chadwick provided the evidence to show the existence of neutrons within the nucleus.\u003Cbr>Distillation\u003Cbr>Distillation can be used to separate liquids from a mixture, if they have different boiling points. Distillation is the process in which evaporation of a liquid is followed by condensation |  |\n\n\n| The Atom\u003Cbr>Atoms are very small, having a radius of about 0.1 nm (1 x 10-10 m)\u003Cbr>The radius of a nucleus is less than 1/10 000 of that of the atom (about 1 x 10-14 m) .\u003Cbr>The mass number tells us the number of protons + neutrons. The number of protons in an atom is known as its atomic number, this is also the number of electrons |  |\n| --- | --- |\n| | Relative Atomic Mass\u003Cbr>Electronic Structure\u003Cbr>The electrons in an atom occupy the lowest available energy levels (innermost available shells) .\u003Cbr>The electronic structure of an atom can be represented by numbers or by a diagram.\u003Cbr>Up to two electrons can occupy the lowest energy level, up to eight in the second energy level and up to eight in the third energy level.\u003Cbr>For example, the electronic structure of sodium is 2,8,1 . |\n| Challenge question\u003Cbr>Why don't atoms collapse if they are mostly empty space? |  |\n| Suggested reading\u003Cbr>[https://www.physicsandmathstutor.com/](https://www.physicsandmathstutor.com/)\u003Cbr>[https://www.bbc.co.uk/bitesize](https://www.bbc.co.uk/bitesize) |  |\n\nHighsted Knowledge Organiser Chemistry: Chemical changes  \n\n| What I need to know\u003Cbr>The reactivity series\u003Cbr>How metals react with acids\u003Cbr>How to name salts\u003Cbr>How acids react with bases The method to make a soluble salt How to carry out a titration | Key Vocabulary:\u003Cbr>• Metal\u003Cbr>• Reaction\u003Cbr>• pH scale\u003Cbr>• Strong acid\u003Cbr>• Weak acid | • Alkali\u003Cbr>• Base\u003Cbr>• Salt\u003Cbr>• Dissociate\u003Cbr>• Reversible | Equations\u003Cbr>Metal + oxygen—> metal oxide Metal + water—> metal hydroxide + hydrogen","cbCaitMA8FVBSeHV","https://ap.wps.com/l/cbCaitMA8FVBSeHV","pdf",1378548,"English","# What I need to know\n## Atoms, elements and compounds\n## Atomic structure and historical models\n## Distillation\n## The atom\n## Relative atomic mass and electronic structure\n## Challenge question\n## Suggested reading\n# Chemistry: Chemical changes\n## Reactivity and reactions\n## Reacting metals and acids\n## Equations and titration\n## Challenge questions","[{\"question\":\"How do atoms, elements and compounds relate?\",\"answer\":\"An element is a pure substance made from one type of atom. A compound contains more than one type of atom chemically bonded together. A mixture contains different substances not chemically bonded together.\"},{\"question\":\"What is the difference between atomic number and mass number?\",\"answer\":\"Atomic number is the number of protons in the nucleus and equals the number of electrons. Mass number is the total number of protons and neutrons in the nucleus.\"},{\"question\":\"How does distillation separate liquids in a mixture?\",\"answer\":\"Distillation separates liquids that have different boiling points. It involves evaporating the liquid and then condensing the vapour back into a liquid.\"}]","Chemistry-Year-9-Terms-1-2 | PDF",1790855483]