elizabethallona elizabethallona

02-01-2019
Chemistry

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How many neutrons does an element have if its atomic number is 55 and its mass number is 150?

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02-01-2019

With an atomic number of 55, that means there are 55 protons. Because electrons do not count towards atomic weight, the element would have 150-55 neutrons. So, 95 neutrons.

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02-01-2019

95 neutrons hope this helps

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