Aug '13
10
MCAT Question of the Day | MCAT Course


  • Q:

    Phosphine (PH3) and ammonia (NH3) both have three hydrogen atoms because:

     

    A

    phosphorous and nitrogen are similar in their physical properties.

    B

    phosphorous and nitrogen are in the same group on the periodic table.

    C

    phosphorous and nitrogen both have stable isotopes.

    D

    phosphorous and nitrogen are both very electronegative and form bonds with hydrogen.




    Tags: Periodic Table | Suggest a tag
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