Hey there! Sign in to join this conversationNew here? Join for free
    • Thread Starter
    Offline

    16
    ReputationRep:
    Can someone check if this is right because the examples I see seem to do ionisation energy of Ca before its atomisation.

    Bit messy sorry

    Also is the electron affinity bit correct?
    Because the one on the notes has a + e-. But i thought electron affinity was removing electrons.
    Im also not sure if the final arrow is down or up?
    Attached Images
      
    Offline

    16
    ReputationRep:
    (Original post by Super199)
    Can someone check if this is right because the examples I see seem to do ionisation energy of Ca before its atomisation.

    Bit messy sorry

    Also is the electron affinity bit correct?
    Because the one on the notes has a + e-. But i thought electron affinity was removing electrons.
    Im also not sure if the final arrow is down or up?
    Electron affinity is adding electrons, ionisation energy is losing electrons

    For the final arrow you just need to think about whether the reaction is exothermic or endothermic (exo = down, endo = up)
    • Thread Starter
    Offline

    16
    ReputationRep:
    (Original post by KaylaB)
    Electron affinity is adding electrons, ionisation energy is losing electrons

    For the final arrow you just need to think about whether the reaction is exothermic or endothermic (exo = down, endo = up)
    Ah right but how would you know if it was exo or endo?
    Would you have to calculate it? Or is there a simple way?
    • Community Assistant
    • Study Helper
    Offline

    14
    ReputationRep:
    (Original post by Super199)
    Ah right but how would you know if it was exo or endo?
    Would you have to calculate it? Or is there a simple way?
    Ionisation energy MUST be endothermic as you are breaking the electrostatic attraction between an electron and the nucleus.
    • Thread Starter
    Offline

    16
    ReputationRep:
    (Original post by charco)
    Ionisation energy MUST be endothermic as you are breaking the electrostatic attraction between an electron and the nucleus.
    Nah I'm on about the last arrow.
 
 
 
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • Poll
    Will you be richer or poorer than your parents?
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

    Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

    Quick reply
    Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.