OCR UNIT 1: ELECTRONS, BONDING AND STRUCTURE all included

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  • Created by: carys ☺
  • Created on: 14-05-13 15:16

1. What is the equation for the second ionisation of oxygen?

  • O+ (l) -> O2+ (g) + e- (s)
  • O+ (g) -> O2+ (g) + e-
  • O2- (g) -> O2+ (g) + H2O
  • O2+ (g) -> O3+ (g) + e-
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Other questions in this quiz

2. What affects ionisation energy?

  • nuclear charge, distance from nucleus and sheilding
  • only nuclear charge
  • the shape and size of an atom
  • distance from the nucleus, shielding and intermolecular forces

3. What is dative covalent bonding?

  • When there are less than 8 electrons in outer shell
  • When both electrons come from one atom
  • When there are more than 8 electrons in outer shell
  • When atoms share more than one pair of electron e.g. in N2

4. What charge does the Sulfate SO4 ion carry?

  • 2-
  • 4-
  • 4+
  • 2+

5. What are Van Der Waals Forces?

  • any intermolecular force
  • electrostatic attraction between temporary dipoles and induced dipoles caused by movement of electrons in atoms and molecules.
  • shared pair of electrons
  • ionic attraction

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