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7 July, 18:52

Greatest average number of neutrons out of tin antimony tellurium iodine?

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  1. 7 July, 22:31
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    Iodine has the greatest average number of neutrons.

    Step-by-step explanation:

    Tin

    Tin has 41 isotopes with every mass number from 99 to 139. Thus, the average mass number is 119.

    Tin has atomic number 50, so the average number of neutrons

    is 119 - 50 = 69.

    Antimony

    Antimony has 37 isotopes with every mass number from 103 to 139. Thus, the average mass number is 121.

    Antimony has atomic number 51, so the average number of neutrons

    is 121 - 51 = 70.

    Tellurium

    Tellurium has 39 isotopes with every mass number from 104 to 142. Thus, the average mass number is 123.

    Tellurium has atomic number 52, so the average number of neutrons

    is 123 - 52 = 71.

    Iodine

    Iodine has 37 isotopes with every mass number from 108 to 144. Thus, the average mass number is 126.

    Iodine has atomic number 53, so the average number of neutrons

    is 126 - 53 = 73.

    Iodine has the greatest average number of neutrons.
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