Unit 1: Structure 1: Models of the Particulate Nature of Matter
Topic 1.2: The Nuclear Atom Questions
Practice 6 exam-style questions for IB Chemistry Topic 1.2. Review the question stems below, then unlock the full Question Bank to access markschemes, model answers, and AI grading.
1State3 marks
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State the relative mass and relative charge of a proton, a neutron and an electron. [3]
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Unlock Question2State2 marks
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Hydrogen-1 and hydrogen-2 (deuterium) are isotopes.
State the number of neutrons in each, and state one physical property in which a sample of 'heavy water' (made with deuterium) would differ from ordinary water. [2]
State the number of neutrons in each, and state one physical property in which a sample of 'heavy water' (made with deuterium) would differ from ordinary water. [2]
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Unlock Question3Deduce3 marks
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Deduce the numbers of protons, neutrons and electrons in the ion . [3]
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Unlock Question4Explain2 marks
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Boron exists as two isotopes, boron-10 and boron-11.
Explain why these two isotopes have identical chemical properties. [2]
Explain why these two isotopes have identical chemical properties. [2]
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Gallium has two isotopes: ⁶⁹Ga with 60.1% abundance and ⁷¹Ga with 39.9% abundance.
Calculate the relative atomic mass of gallium to three significant figures.
Calculate the relative atomic mass of gallium to three significant figures.
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Unlock Question6Calculate2 marks
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A mass spectrum of an element shows three peaks: m/z = 20 (90.5%), m/z = 21 (0.3%) and m/z = 22 (9.2%).
Calculate the relative atomic mass of the element to three significant figures and suggest its identity.
Calculate the relative atomic mass of the element to three significant figures and suggest its identity.
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