AQA GCSE Chemistry

Topic Questions

2.1 Ionic, Covalent & Metallic Bond

11 mark

Covalent molecules can be displayed using a variety of diagrams and written formulae.

Which of the following shows the number of non-bonding electrons present in a molecule?

  • Dot and cross diagrams

  • Ball and stick diagrams

  • Molecular formula

  • All of the above

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21 mark

Ammonia, NH3, is a small covalent molecule.

How many non-bonding, outer-shell electrons are present in one molecule of ammonia?

  • 0

  • 2

  • 5

  • 6

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31 mark

Magnesium reacts with element Z to form a compound with the formula MgZ.

Which of the following elements could be Z?

  • Hydrogen

  • Fluorine

  • Oxygen

  • Chlorine

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41 mark

Elements can bond together in many different ways, by sharing, gaining or losing electrons. In some of the resulting structures, strong electrostatic forces of attraction occur as a result of the type of bonding.

Which of the following examples does not involve strong electrostatic forces of attraction?

  • Bonding between sodium ions and chloride ions

  • Bonding in calcium

  • Bonding between carbon and hydrogen atoms

  • Bonding in the alloy of gold and copper

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51 mark

When atoms gain or lose electrons they can end up having the same electronic structure as other ions or atoms. The nucleus still remains untouched.

Which of the following does not have the same electronic structure as the others in the list?

  • Na+ ion

  • O2- ion

  • Ne atom

  • Cl- ion

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