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Symbols 3579Br and 79Br can be written, whereas symbols 7935Br and 35Br are not acceptable. Answer briefly.

0 40 Views | Posted 3 months ago
Asked by Shiksha User

  • 1 Answer

  • A

    Answered by

    alok kumar singh | Contributor-Level 10

    3 months ago

    The composition of any atom can be represented by using the normal element symbol (X) with super-script on the left hand side as the atomic mass number (A) and subscript (Z) on the left hand side as the atomic number (i.e., AZX).

    No two elements can have the same atomic number. However, the mass numbers have to be mentioned in order to identify the elements. Thus, symbols 7935Br and 79Br are accepted because atomic number of Br will remain 35 even if not mentioned.

    For a given element, the number of protons is the same for the isotopes, whereas the mass number can be different for the given atomic number. Hence, correct pl

    ...more

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