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1 May, 15:08

An unknown element, x, reacts with rubidium to form the compound rb2x. in other compounds this element also can accommodate up to 12 electrons rather than the usual octet. what element could x be?

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  1. 1 May, 15:10
    0
    There are few elements that can form 12 electron rather than the usual 8. Therefore these are the possible answers:

    Sulfur = 2Na + S - - > Na2S

    Selenium = 2Na + Se - - > Na2Se

    Tellurium = 2Na + Te - - > Na2Te
  2. 1 May, 15:12
    0
    An unknown element,

    X

    , reacts with rubidium to form the compound

    R

    b

    2

    X

    . In other compounds this element also can accommodate up to 12 electrons rather than the usual octet. What element could

    X

    be?
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