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Examen

AQA A-level CHEMISTRY Paper 2 JUNE 2025 QUESTION PAPER: Organic and Physical Chemistry
Disponible en un paquete

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40

marzo 2026

2025/2026

A+
Disponible en un paquete
This is the official question paper
SharpTutor
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Examen

AQA A-level CHEMISTRY Paper 1 JUNE 2025 QUESTION PAPER: Inorganic and Physical Chemistry
Disponible en un paquete

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36

marzo 2026

2025/2026

A+
Disponible en un paquete
This is the official question paper
SharpTutor
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Examen

Chemistry A Level Definitions (Edexcel) Questions and Answers
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7

enero 2026

2025/2026

A+
Chemistry A Level Definitions (Edexcel) Questions and Answers Mass number Total number of protons and neutrons in the nucleus Atomic number Number of protons in the nucleus Isotope Atoms which have the same number of protons but different number of neutrons Relative Atomic Mass (Ar) The weighted mean mass of an atom of an element compared to 1/12th of the mass of an atom of carbon-12 Relative isotopic mass The mass of an atom of an isotope compared with 1/12th o...
Pogba119
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Examen

OCR A-LEVEL CHEMISTRY MODULE 2 Questions and Answers
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5

enero 2026

2025/2026

A+
OCR A-LEVEL CHEMISTRY MODULE 2 Questions and Answers ISOTOPES ATOMS OF THE SAME ELEMENT WITH DIFFERENT NUMBERS OF NEUTRONS ATOMIC (PROTON) NUMBER NUMBER OF PROTONS IN THE NUCLEUS MASS (NUCLEON) NUMBER NUMBER OF PARTICLES (PROTONS & NEUTRONS) IN THE NUCLEUS ION A POSITIVELY OR NEGATIVELY CHARGED ATOM OR (COVALENTLY BONDED) GROUP OF ATOMS RELATIVE ISOTOPIC MASS THE MASS OF AN ISOTOPE COMPARED WITH ON TWELTH OF THE MASS OF AN ATOM OFCARBON 12 RELATIVE ATOMIC...
Pogba119
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Examen

AQA A-level Chemistry - Physical Chemistry - 1.1 Atomic Structure Questions and Answers
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2

enero 2026

2025/2026

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AQA A-level Chemistry - Physical Chemistry - 1.1 Atomic Structure Questions and Answers Which letter is used to represent the atomic number of an atom? Z What does the atomic number tell us about an element? Atomic number = number of protons in an atom What letter represents mass number? A How is the mass number calculated? mass number = number of protons + number of neutrons (total number of nucleons) Define relative atomic mass Average mass of all isotopes of...
Pogba119
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Examen

OCR B Salters A level chemistry Questions and answers
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7

enero 2026

2025/2026

A+
OCR B Salters A level chemistry Questions and answers percentage error Uncertainty / reading x 100 JJ Thomson Plum pudding model (1897) Ernest rutherford Gold foil experiment- discovered nucleus (1909) Niels Bohr 1913- discovered that electrons move around the nucleus in orbits called electron shells. EM emitted/ absorbed when moving between levels- fixed frequency Mass Spectrometer steps 1. Vaporisation 2.Ionisation 3.Acceleration 4.Ion drift 5.Detection ...
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Examen

AQA A Level Chemistry Transition Metals – Colours Questions and Answers
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2

enero 2026

2025/2026

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AQA A Level Chemistry Transition Metals – Colours Questions and Answers Colour of MnO4- (+7 oxidation state) purple Colour of CrO7 2- (+6 oxidation state) orange Colour of V(O2)+ (+5 oxidation state) yellow Colour of VO 2+ (+4 oxidation state) blue Colour of V 3+ (+3 oxidation state) green Colour of Cr 3+ (+3 oxidation state) green/violet Colour of Fe 3+ (+3 oxidation state) yellow Colour of V 2+ (+2 oxidation state) violet Colou...
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Examen

AQA A level Chemistry Bonding (chemrevise) Questions and Answers
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3

enero 2026

2025/2026

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AQA A level Chemistry Bonding (chemrevise) Questions and Answers What is Ionic bonding? electrostatic force of attraction between oppositely charged ions formed by electron transfer When do metal atoms form an ion with a ve+ charge? when they lose electrons When do non-metal atoms form an ion with a ve- charge? when they gain electrons When is ionic bonding stronger and melting points higher? -ions are smaller -ions have higher charges What is a covalent bond? ...
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