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29 December, 19:25

John knows that the atomic number of the element Chlorine, Cl, is 17. He also knows that one particular isotope of chlorine has a mass of 35. How many neutrons can be found in the nucleus of this isotope of chlorine?

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  1. 29 December, 19:35
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    Chlorine has 18 Neutrons and you can tell because its Atomic Number is 17 so 17 Protons now to have 35 so 35-17=18 because Neutrons are the other half of the weight of an element.

    Answer:18
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