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Deleted user User has deleted their subject information English 42 cards

Cards in this deck (42)

  1. 1Delocalised electronsElectrons that are not associated with any single atom or any single covalent bond
  2. 2Metallic bondingThe electrostatic force of attraction between the nuclei of metal cations and delocalised electrons
  3. 3MalleabilityCan be hammered or pressed into different shapes
  4. 4DuctilityCan be drawn into wire
  5. 5Ionic bondingThe strong electrostatic attraction between oppositely charged ions
  6. 6Ionic bond strengthThe amount of energy requried in one mole of solid to separate the ions to infinity (i.e. to the gas phase)
  7. 7Coordination numberThe coordination number of an ion the number of opppositely charged ions touching it
  8. 8IsoelectronicAtoms have the same number of electrons and hence, the same electron configuration
  9. 9CationPositive ion
  10. 10AnionNegative ion
  11. 11Bond lengthThe distance between nuclei of the two atoms that are covalently bonded together
  12. 12ElectronegativityThe ability of an atom to attract a bonding pair of electrons
  13. 13Polar covalent bondA type of covalent bond between two atoms where the bonding electrons are unequally distributed. Because of this, one atom carries a slight negative charge and the other a slight positive charge.
  14. 14Discrete (Simple) moleculeAn electrically neutral group of two or more atoms held together by chemical bonds
  15. 15Displaced (Full structural) formulaShows each bonding pair as a line drawn between the two atoms inolved
  16. 16Dative covalent bondA covalent bond in which both electrons in the bond are supplied by onlu one of the atoms involved in forming the bond
  17. 17Covalent bondThe strong electrostatic attraction between the nuclei of two atoms and the bonding pair of electrons.
  18. 18How is a covalent bond formed?By the overlap of two atomic orbitals each containing a single electron
  19. 19What determines the shape of a simple molecule/ion?The repulsion between the electron pairs that surround the central atom
  20. 20VSEPRValence Shell Electron Pair Repulsion Theory
  21. 21DipoleA dipole is said to exist when two charges of equal magnitude but opposite signs are separated by a small distance
  22. 22London forcesInstantaneous dipole-induced dipole interaction
  23. 23Permanent dipole interactionThe force resulting from the favourable or unfavourable interaction between two molecules that possess a permanent charge asymmetry
  24. 24Hydrogen bondAn intermolecular interaction (in which there is some evidence of bond formation) between a hydrogen atom of a molecule (or molecular fragment) bonded to an atom which is more electronegative than hydrogen and another atom in the same or a different molecule
  25. 25Intermolecular interactionsInteractions between molecules
  26. 26Van der Waals forceThe sum of all the intermolecular interactions between the molecules. The term includes London forces and permanent dipole-dipole interactions.
  27. 27Non-polar moleculeA molecule in which individual dipoles cancel each other out, resulting in no net dipole
  28. 28Polar moleculeA molecule in which individual dipoles reinforce each other out, resulting in an overall dipole
  29. 29Trend in boiling temperatures of alkanesIncreasing with increasing chain length
  30. 30Volatile liquidOne with a low boiling temperature
  31. 31Anomalous properties of water resulting from hydrogen bondingRelatively high melting and boiling points & ice is less dense than water
  32. 32Effect of branching in the carbon chain on the boiling temperature of alkanesBranched chain alkanes have lower boiling temperatures than their unbranched isomers
  33. 33Enthalpy of vaporisationA measure of the amount of energy that is required to completely separate the molecules of a liquid and convert it into a gas at the same temperature
  34. 34Test for unsaturation in moleculesBromine turns from yellow to colourless in unsaturated solutions
  35. 35AlkenesA homologous series of hydrocarbons with the general formula \(C_nH_{2n+2}\)
  36. 36AlcoholsA homologous series of hydrocarbons with the general formula \(C_nH_{2n+1}OH\)
  37. 37Hydration energyThe energy released when an ion is surrouned by water molecules
  38. 38Metal latticesA regular arrangement of poisitive metal ions surrounded by delocalised electrons
  39. 39Another name for giant covalent latticesNetwork covalent lattices
  40. 40Bonding in diamondEach carbon atom forms four sigma bonds to four other sigma bonds
  41. 41GraphenePure carbon in the form of a very thin sheet, one atom thick
  42. 42Examples of molecular latticesSulfur, white phosphorus, buckminster fullerence, dry ice, sucrose, solid alkanes (Such as paraffin wax)

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User has deleted their subject information Flashcards on Flashcards, created by Deleted user on 21/08/2017.
Created by
Deleted user · Aug 2017
Updated
Aug 21, 2017
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18
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  • Created by Niamh Ryan · Aug 21, 2017
  • Copied by Niamh Ryan · Aug 21, 2017
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