Ionisation energy Study guides, Study notes & Summaries
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past papers questions chemistry - November 2020 AS paper 1, 2017 paper 2 A level, paper 1 2019 A level Exam | Questions & 100% Correct Answers (Verified) | Latest Update | Grade A+
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This question is about atomic structure.There is a general trend for an increase in 
ionisation energy across Period 3. 
Give one example of an element that deviates from this trend. Explain why this 
deviation occurs. 
: Aluminium / Al(Outer) electron in (3)p orbital / sub-shell (level) 
(3p) higher in energy / slightly more shielded (than 3s) / slightly further away (than 3s) 
Give an equation, including state symbols, to represent the process that occurs when 
the third ionisation energy of...
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AQA 2023 AS CHEMISTRY 7404/2 Paper 2 Organic and Physical Chemistry questions and answers verified
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AQA 2023 AS CHEMISTRY 7404/2 Paper 2 Organic and 
Physical Chemistry questions and answers verified 
What is the equation linking mass moles and MR? 
Mass=moles * MR 
What is the definition of Ar (relative atomic mass)? 
The average mass of an atom of an element compared to the mass of one twelfth of 
carbon 12. 
What does Mr stand for? 
Relative molecular mass 
Define relative isotopic mass. 
The mass of an isotope of an element compared to the mass of one twelfth of the mass 
of carbon 12 
...
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A-Level Edexcel Chemistry Exam Questions & Answers 2023/2024
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A-Level Edexcel Chemistry Exam Questions & Answers 2023/2024 
 
how to test for C=C - ANSWER-decolourises bromine water 
 
Atomic Number - ANSWER-number of protons in the nucleus of an atom of that element. 
 
Mass Number - ANSWER-the sum of protons and neutrons in a nuclues of an atom 
 
Isotopes - ANSWER-atoms of the same elementwith the same numberof protons but different nuber of neutrons 
 
Relative Atomic Mass - ANSWER-the average mass of an atom of an element compared to a twelfth of the ...
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AS-level AQA Chemistry questions and answers
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AS-level AQA Chemistry questions and 
answers 
What is the charge of a proton? - ANSWERS +1 
What is the charge of a neutron? - ANSWERS 0 
What is the charge of an electron? - ANSWERS -1 
What is the mass of a proton? - ANSWERS 1 
What is the mass of a neutron? - ANSWERS 1 
What is the mass of an electron? - ANSWERS 1/1800 
What is an isotope? - ANSWERS Isotopes of an element are atoms with the same 
number of protons but different numbers of neutrons. 
Why do isotopes of an element all have t...
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CHEM1011 Study Set – Threshold Questions With Complete Solutions
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How is the wavelength of a photon related to its energy, frequency and wavenumber? correct answer: Energy - As the wavelength is shorter, there is more energy and vice versa 
Frequency - The frequency of photon increase, causing the wavelength to go down and vice versa 
Wavenumber - Is reciprocal to the wave length (1/a) 
 
Why are energy levels descrete correct answer: Because each energy level has its own energy pathway. 
 
How to calculate the wavelengths of light from one energy level to ...
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AQA A level Chemistry Mass Spectrometry Questions and Answers Already Passed
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AQA A level Chemistry Mass Spectrometry Questions and Answers Already Passed 
Q: What do you need to remember about these cards? - Make sure you have the Q side visible first ( quizlet only let me upload images in the answers) - most A-level marks are for application so you need to memorise these facts so we can spend lesson time on application. 
Q: What is mass spectrometry? it is a powerful instrumental method of analysis. It can be used to: - find the abundance and mass of each isotope in an ...
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OCR 2023 Chemistry A H432/03: Unified chemistry A Level Question Paper & Mark Scheme (Merged)
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OCR 2023 
Chemistry A 
H432/03: Unified chemistry 
A Level 
Question Paper & Mark Scheme 
(Merged) 
Please Review and leave your Rating 
stars…. 
Please write clearly in black ink. Do not write in the barcodes. 
Centre number Candidate number 
First name(s) 
Last name 
Oxford Cambridge and RSA 
Friday 23 June 2023 – Morning 
A Level Chemistry A 
H432/03 Unified chemistry 
Time allowed: 1 hour 30 minutes 
INSTRUCTIONS 
• Use black ink. You can use an HB pencil, but only for graphs and dia...
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Inorganic AS AQA Chemistry Exam With 100% Correct Answers 2024
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Inorganic AS AQA Chemistry Exam With 
100% Correct Answers 2024 
What is a d-block (or f-block) element? - answerAn element that forms one or more stable 
ions with a partially filled d (or f) orbital 
What is an s-block (or p-block) element? - answerAn element with its outer electrons in the 
s (or p) orbitals 
What is the scientific name for the rows on the Periodic Table? - answerPeriods 
What is the scientific name for the columns on the Periodic Table? - answerGroups 
What does the group nu...
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AQA AS Physics Definitions Exam Questions and Answers 100% Pass
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AQA AS Physics Definitions Exam Questions and Answers 100% Pass 
Specific charge 
the charge to mass ratio or charge in coulombs divided by the mass in kilograms 
 
 
Isotope 
a nucleus with the same number of protons but different number of neutrons 
 
 
Hadron 
a particle that experiences the strong nuclear force. Composite particles made of either qqq (baryons) or q anti-q (baryon) 
 
 
Antimatter 
Particles with the same mass but opposite charge 
 
 
Photoelectric effect 
the emission of ele...
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A Level Physical Chemistry AQA questions and answers 100% verified.
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A Level Physical Chemistry AQA questions and answers 100% verified. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1 - ANS.relative mass of a proton 
 
1 - ANS.relative mass of a neutron 
 
1/1840 - ANS.relative mass of an electron 
 
+1 - ANS.relative charge of a proton 
 
0 - ANS.relative charge of a neutron 
 
-1 - ANS.Relative charge of an electron 
 
strong nuclear force - ANS.How is the nucleus held together 
 
nuclear force - ANS.is the nuclear force or electrostatic force stronge...