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Electron Configuration HELP! Watch

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    Hey!

    I REALLY need help with a homework question, I've tried endlessly Googling for something but can't find anything so now I turn to you, good people of TSR.

    So my question is this..

    Write the symbol for the ion with a 2+ charge which has the electronic configuration 1s2 2s2 2p6.

    Any help would be HUGELY appreciated, thank you in advance!
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    (Original post by givemeknowledge)
    Hey!

    I REALLY need help with a homework question, I've tried endlessly Googling for something but can't find anything so now I turn to you, good people of TSR.

    So my question is this..

    Write the symbol for the ion with a 2+ charge which has the electronic configuration 1s2 2s2 2p6.

    Any help would be HUGELY appreciated, thank you in advance!
    2+ charge mean it lost 2 electrons. So initially It had 1s^2 2s^2 2p^6 3s^2. That's the electronic configuration of Mg so your answer is Mg2+ when it lost its two electrons.
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    (Original post by swopnil)
    2+ charge mean it lost 2 electrons. So initially It had 1s^2 2s^2 2p^6 3s^2. That's the electronic configuration of Mg so your answer is Mg2+ when it lost its two electrons.
    Thank you!!!
 
 
 
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