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1.1 A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes

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Question 17

A researcher uses neutral atoms of isotope X in a chemical reaction. The researcher wants to repeat the reaction using a different isotope of the same element.

AtomAtomic numberMass number
X1428
P1430
Q1530
R1428

Which candidate, P, Q or R, should the researcher use?

Explain why the candidate is suitable and why it should undergo the same chemical reactions as X.

[4]
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1.1 A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes Questions

  1. GCSE
  2. /Chemistry
  3. /1.1 A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes

93 exam-style questions on AQA GCSE Chemistry 1.1 A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes, covering 1.1.1a Atoms, elements and compounds, 1.1.1b Half equations and ionic equations, 1.1.2 Mixtures, 1.1.3 The development of the model of the atom (common content with physics), 1.1.4 Relative electrical charges of subatomic particles, 1.1.5 Size and mass of atoms, 1.1.6 Relative atomic mass, and 1.1.7 Electronic structure. Each one has a worked solution and a mark scheme showing where the marks go.

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