Skip to content

Course home

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

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

EasyMedium
123456
Question 5
80%

This question is about magnesium.

a.

Which type of substance is magnesium?

  • Compound
  • Element
  • Mixture
[1]
b.

A sample of 24 g24\text{ g}24 g of magnesium contains 6.02×10236.02 \times 10^{23}6.02×1023 atoms. Which expression is used to calculate the mass of one atom of magnesium in grams?

  • 246.02×1023\frac{24}{6.02 \times 10^{23}}6.02×102324​
  • 6.02×102324\frac{6.02 \times 10^{23}}{24}246.02×1023​
  • 24×6.02×102324 \times 6.02 \times 10^{23}24×6.02×1023
[2]
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

41 exam-style questions on AQA GCSE Chemistry 1.1 A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes, covering 1.1.1 Atoms, elements and compounds, 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.

Question bank