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atomic number 51

n.
1.a metallic element having four allotropic forms

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  • Idiom of the Day

    put a stop/end to (something)
    to bring something to an end
    The company is trying to put an end to the personal use of computers during office hours.



    1.
    She's finished the project.

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    Compound
    Compound : marsh gas
    Chemical Name : methane
    Chemical Formula : ch4.      .. More >>
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