The bohr model Study guides, Class notes & Summaries
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AQA GCSE PHYSICS 8463/1F Paper 1 Foundation Tier Version: 1.0 Final *JUN2384631F01* IB/H/Jun23/E6 8463/1F Thursday 25 May 2023/ QUESTION PAPER & MARKING SCHEME/ [MERGED]
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AQA 
GCSE 
PHYSICS 
8463/1F 
Paper 1 Foundation Tier 
Version: 1.0 Final 
*JUN2384631F01* 
IB/H/Jun23/E6 8463/1F 
Thursday 25 May 2023 Morning Time allowed: 1 hour 45 minutes 
Materials 
For this paper you must have: 
• a ruler 
• a scientific calculator 
• the Physics Equations Sheet (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....
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CLEP Chemistry Latest Update Graded A
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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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AQA GCSE COMBINED SCIENCE: TRILOGY 8464/C/1F Chemistry Paper 1F Version: 1.0 Final *JUN238464C1F01* IB/M/Jun23/E5 8464/C/1F QUESTION PAPER & MARKING SCHEME/ [MERGED]
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GCSE 
COMBINED SCIENCE: TRILOGY 
8464/C/1F 
Chemistry Paper 1F 
Version: 1.0 Final 
 
*JUN238464C1F01* 
IB/M/Jun23/E5 8464/C/1F 
 For Examiner’s Use 
Question Mark 
1 
2 
3 
4 
5 
6 
7 
TOTAL 
Monday 22 May 2023 Morning Time allowed: 1 hour 15 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 ...
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EDEXCEL GCSE Combined Science Physics – Paper 1 Foundation Tier Predicted Paper 2023 attached with correct marking scheme
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GCSE Combined Science Edexcel 
Physics – Paper 1 Foundation Tier Predicted Paper 2023 attached with correct marking scheme 
	 
Name …………………………………………………………………… 
Date ………………… 
 
 
1 hour 15 minutes allowed. 
You may use a calculator and an Edexcel equation sheet. 
 
 
 
 
Grade boundaries 
These are VERY rough guesses! Getting a 4 on this paper does not guarantee you the same mark in the exam. 
 
 
 
•	5-5	60% 
•	4-4	50% 
•	...
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TEST BANK FOR RADIOLOGIC SCIENCE FOR TECHNOLOGISTS 11TH EDITION BY BUSHONG
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MULTIPLE CHOICE 
 
 1. The term “atom” was first used by the ___________. 
a. Ethiopians 
b. British 
c. Greeks 
d. Romans 
 
 
ANS: C 
The term “atom” was first used by the Greeks 
 
DIF: Moderate REF: p. 27 
OBJ: Relate the history of the term “atom.” 
 
 2. The first person to describe an element as being composed of identical atoms was 
__________. 
a. J. J. Thomson 
b. John Dalton 
c. Dmitri Mendeleev 
d. Niels Bohr 
 
 
ANS: B 
The first person to describe an ele...
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DAT General Chemistry Exam |170|questions with complete solution
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DAT General Chemistry Exam |170|questions with complete solution 
Atomic Number ANS-number of protons found in that atom; low number; (Z) 
 
Mass Number ANS-Protons + Neutrons; high number; (A) 
 
Atomic Mass ANS-relative mass of that atom compared to the mass of a carbon-12 atom (which is set at 12.00); measured in amu; 
 
1 amu = ANS-1.66x10^-24 
 
Atomic Weight ANS-weight (g) of one mole (mol) of a given element (g/mol); the weighted average of all the masses (not the weights) of an element, ...
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AQA AS Physical Chemistry 2024 Exam Questions And Answers
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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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CLEP Chemistry questions well answwred graded A+ 2023
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CLEP ChemistryJohn Dalton - correct answer 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 - correct answer 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 - correct answer Calculated the charge-to-mass ratio of electr...
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Nuclear Medicine Physics question and answers rated A+ 2023 passed
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Nuclear Medicine Physics question and answers rated A+ 2023 passedBinding energy - correct answer min amount of energy required to "free" and electron from an atom. 
 
Unstable vs stable - correct answer stable-non radioactive 
unstable- radioactive 
 
Ionization - correct answer removal of an ELECTRON from an atom 
 
Excitation - correct answer electron absorbs enough energy to make it move to an UNOCCUPIED shell 
 
Strong nuclear force - correct answer energy used to hold particles inside th...
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CHEM 305 Chapter 4 Exam Questions And Answers 2024
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CHEM 305 Chapter 4 Exam Questions And Answers 2024 
1. Light - ANS-a form of electromagnetic radiation which is a type of energy that travels through 
space in a constant speed and wave pattern 
2. Waves with shorter wavelengths - ANS-have high energy and high frequency 
3. waves with long wavelengths - ANS-have low energy and low frequency 
4. waves with high energy - ANS-have short wavelengths and high frequency 
5. waves with low energy - ANS-have long wavelengths and low frequency 
6. what ...
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