Chem

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Which of the following elements can form chemical compounds. CHECK ALL THAT APPLY.

Xe
Rn
Kr
Ne
H
He

Is this a trick question...can't all of them form chemical compounds?

  • Chem -

    Xe
    Rn
    Kr
    Ne
    H
    He

    Sorry, these are the choices...

  • Chem -

    ALL of theml however, Xe, Rn, Kr, Ne, and He are considered noble gases and inert. However, within the last 20 years or so, all but He have been found to form a few compounds. I expect the answer to the problem is H

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