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24 November, 23:26

An unknown element X has the following isotopes: ⁵²X (89.00% abundant), ⁴⁹X (8.00% abundant), ⁵⁰X (3.00% abundant). What is the approximate atomic mass of X?

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  1. 24 November, 23:54
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    52 amu

    Explanation:

    To get the relative atomic mass of the element, we need to take into consideration, the atomic masses of the different isotopes and their relative abundances. We simply multiply the percentages with the masses. This can be obtained as follows:

    [89/100 * 52] + [8/100 * 49] + [3/100 * 50]

    46.28 + 3.92 + 1.5 = 51.7 amu

    The approximate atomic mass of element x is 52 amu
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