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AQA GCSE Chemistry - Paper 1 Graded A+

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AQA GCSE Chemistry - Paper 1 Graded A+ 1. What is the charge carried by a proton? Is it positive or negative? Answer: +1 2. What is the charge of a neutron? Is it positive or negative? Answer: 0 3. What is the charge of an electron? Is it positive or negative? Answer: -1 4. What is th...

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  • July 11, 2024
  • 27
  • 2023/2024
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AQA GCSE Chemistry - Paper 1 Graded A+
1. What is the charge carried by a proton? Is it positive or negative?



Answer: +1



2. What is the charge of a neutron? Is it positive or negative?



Answer: 0



3. What is the charge of an electron? Is it positive or negative?



Answer: -1



4. What is the relative mass of a proton compared to other subatomic particles?



Answer: 1 (same as the neutron)



5. How many types of atoms can an element contain?



Answer: Only one type



6. What kind of substances are formed when two or more different elements bond chemically?



Answer: Compounds



7. What kind of substances are formed when two or more different elements mix but do not bond
chemically?



Answer: Mixtures

,8. What type of pattern is created during paper chromatography?



Answer: A chromatogram



9. Which separation method is useful for separating insoluble solids from liquids?



Answer: Filtration



10. Which method of separation is useful for separating soluble solids from liquids?



Answer: Evaporation or crystallization



11. What type of distillation separates liquids with similar boiling points?



Answer: Fractional distillation



12. Who was responsible for disproving the plum pudding model of the atom?



Answer: Ernest Rutherford



13. Who conducted an experiment that proved the existence of neutrons?



Answer: Niels Bohr



14. Why did Mendeleev leave gaps in his Periodic Table of Elements?



Answer: To make room for predicted elements and to group similar elements together based on their
properties

, 15. How are group numbers related to the number of electrons in an element's outer shell?



Answer: The group number indicates the number of electrons in an element's outer shell



16. What type of ions do metals typically form when reacting with other elements?



Answer: Positive ions (cations)



17. Where are non-metals typically located on the Periodic Table?



Answer: On the right-hand side



18. What are three unique properties of transition metals?



Answer:



* They can form multiple ions

* They often exhibit colorful compounds

* They make effective catalysts



19. As you move down Group 1, what three trends do you observe?



Answer:



* Increased reactivity due to decreasing nuclear attraction

* Lower melting and boiling points

* Higher relative atomic mass

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