3.1.1 Periodicity

1. Write an equation to represent the first ionisation energy of sulfur

  • S = S^(+) + e-
  • S = S- + e-
  • S(g) = S+(g) + e-
  • S(g) = S-(g) + e-
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2. Metals can conduct electricity because there are delocalised electrons

  • True
  • False

3. Define the term first ionisation energy for magnesium

  • the removal of 1mol of magnesium electrons from 1mol of gaseous atoms to form 1mol of gaseous magnesium ions
  • the removal of 1mol magnesium electrons from 1mol of atoms to form 1mol of magnesium ions
  • the gaining of magnesium electrons from one atom to form a magnesium ion

4. What is the structure of Na, Mg, Al, Si, P, S and Cl? S for simple molecular structure and G for giant structure

  • G, G, G, G, S, G and S
  • S, G, G, G, S, G and S

5. The first ionisation energy of sulfur is higher than that of chlorine because there is an increased nuclear charge and the shielding is different

  • False
  • True

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