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March 29, 2017

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name each isotope, and write it in symbolic notation
atomic number 26; mass number 56
atomic number 29; mass number 64
atomic number 17; mass number 37

  • chemistry - ,

    The atomic number is the number of protons and "names" the element. You write the element, as in X, then to the lower left a subscript with the atomic number and to the upper left a superscript that shows the mass number.

  • chemistry - ,

    thanks for the help but i don't understand what its supposed to look like. can u show me an example please

  • chemistry - ,

    ok i just looked it up. so for the first one would it look like this

    56
    26 Fe

  • chemistry - ,

    atomic number 26; mass number 56

    I think you have it.
    The atomic number is 26, that tell you the number of protons. The periodic table tell you the element is Fe. 56 is the mass number. It is written this way.
    2656Fe

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