hidy240 hidy240

11-04-2017
Physics

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How many neutrons does element x have if its atomic number is 54 and its mass number is 151?

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noahmmackay noahmmackay

24-04-2017

Atomic mass (z) - atomic number / # of protons (n) = # of neutrons:

151-54=97

You can easily tell what element X is. With an atomic number of 54, the element is the noble gas Xenon (Xe).

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