elizabethallona
elizabethallona elizabethallona
  • 02-01-2019
  • Chemistry
contestada

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

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jipa
jipa jipa
  • 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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vick67
vick67 vick67
  • 02-01-2019
95 neutrons hope this helps
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