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...
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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