Ionisation energy - Study guides, Revision notes & Summaries
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2023 AQA AS CHEMISTRY 7404/1 Paper 1 Inorganic and Physical Chemistry Question Paper & Mark scheme (Merged) June 2023 [VERIFIED
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2 
Section A 
Answer all questions in this section. 
0 1This question is about the elements in Period 3. 
0 1 . 1 Give the full electron configuration of the element in Period 3 with the 
highest first ionisation energy. 
[1 mark] 
0 1 . 2 Give an equation, including state symbols, to represent the process that occurs when the 
second ionisation energy of sodium is measured. 
[1 mark] 
0 1 . 3 Table 1 shows some successive ionisation energies for an element in Period 3. 
Table 1 
Ionisation nu...
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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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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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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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BTEC Applied Science Unit 1 Chemistry - Distinction.
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BTEC Applied Science Unit 1 Chemistry - Distinction. How many electrons can an s subshell hold? correct answer2 
How many electrons can a p subshell hold? correct answer6 
How many electrons can a d subshell hold? correct answer10 
Which subshells are available in the first energy level? correct answers 
Which subshells are available in the second energy level? correct answers and p 
Which subshells are available in the third energy level? correct answers, p and d 
What is Hund's rule? correct ...
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OCR A Chemistry paper 1 revision Questions and Answers 2024
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first ionisation energy - ANS-The energy required to remove 1 mole of electrons from 1 mole of gasous molecules to form 1 mole of gasous ions.
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BTEC Applied Science Unit 1 Chemistry - Distinction.
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BTEC Applied Science Unit 1 Chemistry - Distinction. How many electrons can an s subshell hold? correct answer2 
How many electrons can a p subshell hold? correct answer6 
How many electrons can a d subshell hold? correct answer10 
Which subshells are available in the first energy level? correct answers 
Which subshells are available in the second energy level? correct answers and p 
Which subshells are available in the third energy level? correct answers, p and d 
What is Hund's rule? correct ...
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AQA Chemistry As Level Paper 1 Questions & Correct Answers/ Graded A
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State the electron rules 
: Lowest energy filled first (3d>4s) 
Line up parallel 
Single until forced to pair 
Electronegativity 
: The ability of an atom to attract electrons within a covalent bond 
RAM (relative atomic mass) 
: Average mass of one atom compared to 1/12th the mass of a c-12 atom 
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Ionisation energy 
: The energy required to remove one mole of electrons from each of one mole of 
gaseous atoms to form one mole of positive gaseous ions 
2 
(Endothermic) 
Trends of Ionisat...
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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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physical chemistry: atomic structure questions & Answers 100% Correct!!
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Q1.Which one of the following is the electronic configuration of the strongest reducing agent? 
A 1s2 2s2 2p5 
B 1s2 2s2 2p6 3s2 
C 1s2 2s2 2p6 3s2 3p5 
D 1s2 2s2 2p6 3s2 3p6 4s2 - ANSWER D 
 
Which one of the following ionisations requires less energy than the first ionisation energy of oxygen? 
A S(g) → S+(g) + e− 
B O+(g) → O2+(g) + e− 
C N(g) → N+(g) + e− 
D F(g) → F+(g) + e− - ANSWER A 
 
Which one of the following is the electronic configuration of an element with a maxim...
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