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Students complete diagrams and tables, judge statements as true/false, identify compounds, and use isotopes to calculate relative atomic mass. The material also includes balancing equations, properties and reactivity trends in groups, separation of mixtures, and questions on historical atomic models and experiments such as alpha scattering and the plum pudding model.","AQA Chemistry GCSE Unit 4.1 Atomic Structure and the Periodic Table – Foundation  \n\n| Draw and label an atom. Include labels for the following:   | a  \u003Cbr>|\n| --- | --- |\n| neutron, proton, electron.  \u003Cbr>True or false?  \u003Cbr>1. The radius of an atom is 0.1nm.  \u003Cbr>2. Most of the mass is in the shell of the atom.   |  |\n\n\n| What are the symbols for the following elements.   | d  \u003Cbr>|\n| --- | --- |\n| Element   Symbol   oxygen   lithium   sodium   potassium   helium   carbon   magnesium   |  |\n\n\n| Fill in the table to show the charges and mass of thecomponents of an atom.   | b  \u003Cbr>|\n| --- | --- |\n| Name   Charge   Relative Mass   proton   neutron   electron  \u003Cbr>What is the overall charge of an atom?positive  \u003Cbr>negative  \u003Cbr>no charge   |  |\n\n c   \nA compound is 2 or more e  , chemicallyj  .  \nWhich of the following are compounds?Put a ring round them.  \noxygen, salt water, magnesium oxide, sodium chloride,nitrogen  \nWhy have you circled the ones you have?  \n| Complete the following diagram for sodium, include the   | e  \u003Cbr>|\n| --- | --- |\n| atomic number and the atomic mass number.  \u003Cbr>Na  \u003Cbr>What is the mass number?  \u003Cbr>How do you calculate neutron number?   |  |\n\nIsotopes are elements with a different number ofn  but the same number of p  ,e.g. carbon 12 and carbon 14.  \nf  \nHow can you use isotopes to calculate the relative atomicmass? Write down the equation.  \nRelative atomic = sum of ( )mass (Ar)  \n\n| Complete and balance the following equations.  \u003Cbr>Mg + O2  MgO  \u003Cbr>Be + S  BeS  \u003Cbr>Be + F2   \u003Cbr>K + Cl2    | g  \u003Cbr>|\n| --- | --- |\n\n\n| Mixtures  \u003Cbr>Write the definition of a mixture. Give two examples.   | h  \u003Cbr>|\n| --- | --- |\n|  |  |\n\n\n| Name the compounds and the elements they contain.  \u003Cbr>NaCl - sodium chloride, sodium and chlorine   | i  \u003Cbr>|\n| --- | --- |\n| MgO -  MgS -  FeS -     |  |\n\n\n| What is the ratio of the elements in the following   |  | j  \u003Cbr>|\n| --- | --- | --- |\n| compounds?  \u003Cbr>e.g. CaO = 1:1  \u003Cbr>MgCl2 =  \u003Cbr>K20 =   | NaCl =  \u003Cbr>lithium fluoride =  \u003Cbr>sodium hydroxide =   |  |\n\n1  \n| Separating Mixtures  \u003Cbr>What are the following separation techniques?   | k  \u003Cbr>|\n| --- | --- |\n| D   \u003Cbr>F  D   \u003Cbr>What separation technique would you use to separate outdifferent inks in pens?  \u003Cbr>C   \u003Cbr>How can salt be collected using the process of crystallisation?  \u003Cbr>|  |\n| Sand and water can be separated by using a process called  \u003Cbr>F   \u003Cbr>Describe in 4 steps how to collect salt from rock salt.  \u003Cbr>1.    \u003Cbr>2.    \u003Cbr>3.    \u003Cbr>4.     |  |\n\nAQA Chemistry GCSE Unit 4.1 Atomic Structure and the Periodic Table – Foundation  \n\n| Complete the electronic structure diagrams for:   |  | a  \u003Cbr>|\n| --- | --- | --- |\n| oxygen  \u003Cbr>magnesium   | \u003Cbr>O   |  |\n| \u003Cbr>Mg   |  |  |\n\n\n| What are the following gases?  \u003Cbr>A   n, N   n, X   n, R   n  \u003Cbr>Describe why the noble gases are so unreactive.Keywords: full, electrons, shell.   | b  \u003Cbr>|\n| --- | --- |\n| The boiling points of the noble gases increase/decrease asyou go down the group. (delete the wrong answer) .Can you explain your answer?   |  |\n\n\n| Describe what happens to the reactivity of the alkalimetals as you go down the group.   | c  \u003Cbr>|\n| --- | --- |\n| Why?  \u003Cbr>Complete the word and symbol equation for sodiumreacting with water:  \u003Cbr>sodium + water  sodium hydroxide +    \u003Cbr>Na +   NaOH +     |  |\n\n\n| List 3 halogens  \u003Cbr>c  , f  , i  ,   | d  \u003Cbr>|\n| --- | --- |\n| How many electrons do they have in their outer shell?Circle the correct answer.  \u003Cbr>a) 1 b) 7 c) 8  \u003Cbr>Describe how the reactivity changes as you go down the group.Keywords: reactive, nucleus, distance, less  \u003Cbr>\u003Cbr>Write balanced symbol equations for the following reactions:  \u003Cbr>bromine + potassium iodide  \u003Cbr>chlorine + sodium iodide  \u003Cbr>fluorine + potassium chloride   |  |\n\n\n| Underlineproperties   | the properties of metals and circle theof non-metals:   | e  \u003Cbr>|\n| --- | --- | --- |\n| strong, low density, malleable, dull, good conductorsof heat and electricity, high","cbCaiq1DznzMdYEB","https://ap.wps.com/l/cbCaiq1DznzMdYEB","pdf",655851,1,"English","en",105,"# Atomic structure basics\n## Atoms, charges, and labels\n## True/false and atom diagrams\n# Elements, symbols, and compounds\n## Element symbols\n## Compounds and naming\n# Isotopes and relative atomic mass\n## Isotope definitions\n## Calculations using an equation\n# Chemical equations\n## Balancing reactions\n# Mixtures and separation\n## Definition and examples\n## Separation techniques and steps\n# The periodic table and trends\n## Group arrangements\n## Reactivity patterns in groups\n# Atomic models and experiments\n## Plum pudding model\n## Alpha scattering and historical questions","[{\"question\":\"How do you calculate the neutron number and mass number for an atom?\",\"answer\":\"The neutron number is found using the difference between mass number and atomic number. The worksheet asks students to complete a sodium diagram including both atomic number and mass number, then determine the neutron number from them.\"},{\"question\":\"What is an isotope and how is it used to find relative atomic mass?\",\"answer\":\"An isotope is an element with the same number of protons but a different number of neutrons. Relative atomic mass is calculated by using an equation that sums the different isotopes’ contributions, as shown in the worksheet with “Relative atomic = sum of ( )mass (Ar)”.\"},{\"question\":\"Which separation techniques are used for separating mixtures like inks or salt?\",\"answer\":\"The worksheet prompts students to state separation techniques for different cases, including separating different inks in pens and collecting salt using crystallisation. It also includes multi-step guidance for collecting salt from rock salt.\"}]","AQA Chemistry GCSE Unit 4.1 Atomic Structure and the Periodic Table - Foundation | PDF",1788601882,10,{"code":4,"msg":30,"data":31},"ok",{"site_id":23,"language":22,"slug":32,"title":13,"keywords":33,"description":14,"schema_data":34,"social_meta":85,"head_meta":87,"extra_data":89,"updated_unix":27},"aqa-chemistry-gcse-unit-41-atomic-structure-and-the-periodic-table-foundation","",{"@graph":35,"@context":84},[36,52,67],{"@type":37,"itemListElement":38},"BreadcrumbList",[39,43,47,50],{"item":40,"name":41,"@type":42,"position":20},"https://docshare.wps.com","Home","ListItem",{"item":44,"name":45,"@type":42,"position":46},"https://docshare.wps.com/document/","Document",2,{"item":48,"name":12,"@type":42,"position":49},"https://docshare.wps.com/document/exam/",3,{"item":51,"name":13,"@type":42,"position":11},"https://docshare.wps.com/document/aqa-chemistry-gcse-unit-41-atomic-structure-and-the-periodic-table-foundation/207943/",{"url":51,"name":13,"@type":53,"author":54,"headline":13,"publisher":56,"fileFormat":59,"inLanguage":22,"description":14,"dateModified":60,"datePublished":61,"encodingFormat":59,"isAccessibleForFree":62,"interactionStatistic":63},"DigitalDocument",{"name":9,"@type":55},"Person",{"url":40,"name":57,"@type":58},"DocShare","Organization","application/pdf","2026-09-07","2026-09-05",true,{"@type":64,"interactionType":65,"userInteractionCount":20},"InteractionCounter",{"@type":66},"ViewAction",{"@type":68,"mainEntity":69},"FAQPage",[70,76,80],{"name":71,"@type":72,"acceptedAnswer":73},"How do you calculate the neutron number and mass number for an atom?","Question",{"text":74,"@type":75},"The neutron number is found using the difference between mass number and atomic number. The worksheet asks students to complete a sodium diagram including both atomic number and mass number, then determine the neutron number from them.","Answer",{"name":77,"@type":72,"acceptedAnswer":78},"What is an isotope and how is it used to find relative atomic mass?",{"text":79,"@type":75},"An isotope is an element with the same number of protons but a different number of neutrons. Relative atomic mass is calculated by using an equation that sums the different isotopes’ contributions, as shown in the worksheet with “Relative atomic = sum of ( )mass (Ar)”.",{"name":81,"@type":72,"acceptedAnswer":82},"Which separation techniques are used for separating mixtures like inks or salt?",{"text":83,"@type":75},"The worksheet prompts students to state separation techniques for different cases, including separating different inks in pens and collecting salt using crystallisation. 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