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3 January, 14:40

A 5-column table with 2 rows. Column 1 is labeled number of protons, with entries A and D; column 2 is number of neutrons, with entries 7 and E; Column 3 is atomic number, with entries B and 26; Column 4 is Mass Number, with entries 15 and 56, and Column 5 is Element (symbol) with entries C and F. Using the periodic table, complete the table to describe each atom. Type in your answers.

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  1. 3 January, 18:05
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    A = 8

    B = 8

    C = Oxygen (O)

    D = 26

    E = 30

    F = Iron (Fe)

    Explanation:

    protons neutrons atomic number mass number element

    A 7 B 15 C

    D E 26 56 F

    mass number = protons + neutrons

    E = 56 - 26 = 30

    A = 15 - 7 = 8

    protons = atomic number

    B = 8

    D = 26

    From atomic number:

    C = Oxygen (O)

    F = Iron (Fe)
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