Join TSR now and get all your revision questions answeredSign up now

Chemistry help with polyatomic ions Watch

    • Thread Starter

    I am actually a year 10 GCSE student but seeing as this wasn't actually in GCSE I figured that i would put it in A level.

    I was wondering is there a way to work out the charge of a poly-atomic ion rather than just simply remembering and recalling it.

    For example, I can recall that the formula for the poly atomic ion hydroxide is OH-, but how do you find out that the charge is -1?
    • Official TSR Representative

    Sorry you've not had any responses about this. Are you sure you've posted in the right place? Here's a link to our subject forum which should help get you more responses if you post there.

    Just quoting in Danny Dorito so she can move the thread if needed :wizard:
    (Original post by Danny Dorito)
How are you feeling about Results Day?

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.