Plum pudding model Studienführer, Klassennotizen & Zusammenfassungen
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CLEP Chemistry Latest Update Graded A
- Prüfung • 25 Seiten • 2023
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CLEP Chemistry Latest Update Graded A John Dalton Proposed that matter is composed of atoms; these atoms have different identities called elements, which combine to form compounds; measured masses of reactants and products. 
J.J. Thompson Observed deflection of particles in a cathode ray tube; proposed that atoms are composed of positive and negative charges; developed the plum pudding model of the atom 
Robert Millikan Calculated the charge-to-mass ratio of electrons using oil drops falling in ...
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GCSE CHEMISTRY	H Higher Tier	Paper 1
- Prüfung • 45 Seiten • 2023 Beliebt
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GCSE 
CHEMISTRY	H 
Higher Tier	Paper 1 
 
Monday 22 May 2023	Morning	Time allowed: 1 hour 45 minutes 
Materials 
For this paper you must have: 
•	a ruler 
•	a scientific calculator 
•	the periodic table (enclosed). 
 
Instructions 
•	Use black ink or black ball-point pen. 
•	Pencil should only be used for drawing. 
•	Fill in the boxes at the top of this page. 
•	Answer all questions in the spaces provided. Do not write outside the box around each page or on blank pages. 
•	If you...
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AQA GCSE Separate Science Chemistry – Paper 1 Higher Tier Predicted Paper 2023 With marking scheme
- Prüfung • 28 Seiten • 2023
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AQA GCSE Separate Science 
Chemistry – Paper 1 Higher Tier 
Predicted Paper 2023 With marking scheme 
	 
Name …………………………………………………………………… 
Date ………………… 
 
 
1 hour 45 minutes allowed. 
You may use a calculator and an AQA periodic table. 
 
 
 
 
Grade boundaries 
These are VERY rough guesses! Getting a 7 on this paper does not guarantee you the same mark in the exam. 
 
 
 
•	9	70% 
•	8	60% 
•	7	50% 
•	6	45% 
•	5	35% 
...
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Straighterline CHEM101 Final Exam Questions with 100% Correct Answers | Latest Version 2024 | Expert Verified | Ace the Test
- Prüfung • 47 Seiten • 2024
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total number of neutrons and protons in an atom; # protons + # electrons Mass Number 
Most nonmetallic elements are found in which block of the periodic table? p 
Ernest Rutherford disproved J.J. Thomson's plum-pudding model of the atom by showing that... 
Positive matter is concentrated in the central core 
Plants use up copious amounts of which alkali metal, preventing most of it from being washed 
out to sea? Potassium 
What is the ratio of reactants and products in the chemical equation? 
_...
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STRAIGHTERLINE CHEM101 FINAL EXAM 2024 WITH 100% CORRECT ANSWERS
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STRAIGHTERLINE CHEM101 FINAL EXAM 2024 WITH 100% CORRECT ANSWERS 
 
 
total number of neutrons and protons in an atom; # protons + # electrons - correct answer Mass Number 
 
Most nonmetallic elements are found in which block of the periodic table? - correct answer p 
 
Ernest Rutherford disproved J.J. Thomson's plum-pudding model of the atom by showing that... - correct answer Positive matter is concentrated in the central core 
 
Plants use up copious amounts of which alkali metal, preventing...
Angst, etwas zu verpassen? Dann tu es nicht!
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2023 AQA GCSE CHEMISTRY 8462/1H Paper 1 Higher Tier Question Paper & Mark scheme (Merged) June 2023 [VERIFIED]
- Prüfung • 67 Seiten • 2024
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2023 AQA GCSE CHEMISTRY 8462/1H Paper 1 Higher Tier Question Paper & Mark 
scheme (Merged) June 2023 [VERIFIED] 
GCSE 
CHEMISTRY 
Higher Tier Paper 1 
H 
Monday 22 May 2023 Morning Time allowed: 1 hour 45 minutes 
Materials 
For this paper you must have: 
• a ruler 
• a scientific calculator 
• the periodic table (enclosed). 
Instructions 
• Use black ink or black ball-point pen. 
• Pencil should only be used for drawing. 
• Fill in the boxes at the top of this page. 
• Answer all...
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AQA AS Physical Chemistry 2024 exam questions with 100% correct answers
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AQA AS Physical Chemistry 2024 exam 
questions with 100% correct answers 
Who described atoms as solid spheres that make up different elements and when? - 
ANSWERS John Dalton in the 19th century 
Who suggested that atoms of a particular element had the same mass and atoms of 
different elements had different masses and when? - ANSWERS John Dalton in 1803 
Who discovered the electron and when? - ANSWERS JJ Thomson, 1897 discovered 
electrons proving atoms weren't indivisible or solid. 
New m...
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2023 AQA GCSE CHEMISTRY 8462/1H Paper 1 Higher Tier Question Paper & Mark scheme (Merged) June 2023 [VERIFIED]
- Prüfung • 68 Seiten • 2024
- Im Paket-Deal erhältlich
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2023 AQA GCSE CHEMISTRY 8462/1H Paper 1 Higher Tier Question Paper & Mark 
scheme (Merged) June 2023 [VERIFIED] H 
GCSE 
CHEMISTRY 
Higher Tier Paper 1 
Monday 22 May 2023 MorningTime allowed: 1 hour 45 minutes 
Materials 
For this paper you must have: 
• a ruler 
• a scientific calculator 
• the periodic table (enclosed). 
Instructions 
• Use black ink or black ball-point pen. 
• Pencil should only be used for drawing. 
• Fill in the boxes at the top of this page. 
• Answer all qu...
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ACS EXAM review 2023 with 100% correct answers
- Prüfung • 15 Seiten • 2023
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Rutherford's Gold Foil Experiment - correct answer proposed that atoms consist of a tiny, massive, positive nucleus surrounded by electrons 
 
nucleus - correct answer contains all the positive charge and nearly all the mass of the atom 
 
James Chadwick - correct answer discovered the neutron 
 
cathode rays - correct answer move from negative electrode to positive electrode (like electrons in a voltaic cell) 
 
Thompson's Cathode Ray Experiment - correct answer discovery of the ele...
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AQA AS Physical Chemistry 2024 Exam Questions And Answers
- Prüfung • 29 Seiten • 2024
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AQA AS Physical Chemistry 2024 Exam Questions And Answers 
 
Who described atoms as solid spheres that make up different elements and when? - ANSWER- John Dalton in the 19th century 
 
Who suggested that atoms of a particular element had the same mass and atoms of different elements had different masses and when? - ANSWER- John Dalton in 1803 
 
Who discovered the electron and when? - ANSWER- JJ Thomson, 1897 discovered electrons proving atoms weren't indivisible or solid. 
 
New model named pl...
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