Hey there! Sign in to join this conversationNew here? Join for free

Which of the following atoms is most likely to form a stable ion with a charge of -1? Watch

    • Thread Starter
    Offline

    0
    ReputationRep:
    Hi guys, could someone please explain this question to me? Which of the following atoms is most likely to form a stable ion with a charge of -1? K, Mg, P, Br. Thank you Jen
    Offline

    2
    ReputationRep:
    Hey there. While you're waiting for a reply to your post, we thought we'd give your thread a timely bump.

    But don't twiddle your thumbs in the meantime! Kick off your revision and study time by heading to our Learn Together section.

    In Learn Together, you'll find interactive study tools to help make your revision quicker and easier. We've also got thousands of handpicked assignments analysed by great teachers, so you can learn from top-marked work. And there's tons more too: get started on Learn Together now!
    Offline

    12
    ReputationRep:
    Bromine is the most likely to form Bromide ions(Br-) as its outer shell holds 7 electrons, is why it is in group 7. Atoms prefer stability so having 8 electrons in the outer shell is a more stable option than having just 7. The opposite can be said for K as it has 1 electron in its outershell meaning it will be more stable if that electrons is removed. These 2 principles form the basis for ionic bonding so Potassium Bromide(KBr) is K+ and Br- ions attracted to each other via electrostatic attraction. Br higher electronegativity withdrew K's outer electron to produce K+ and Br-, These ions are then subsequentialy attracted to each other.

    Im guessing u just finished your GCSE's right? if ya have any other questions to ask just message me
 
 
 
  • 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
    Did TEF Bronze Award affect your UCAS choices?
  • 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.