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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 12
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An atom contains 17 protons, 18 neutrons and 17 electrons. What is the overall electrical charge on this atom, and why?

[1]
A

1−1-1−, because there is one more electron than there are protons

B

0, because there are equal numbers of protons and electrons

C

1+1+1+, because there is one more proton than there are electrons

D

0, because there are equal numbers of neutrons and electrons

Markscheme

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

40 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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