brittanymassey6
brittanymassey6 brittanymassey6
  • 22-06-2018
  • English
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How many neutrons does element X have if its atomic number is 39 and its mass number is 94?

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jesseboo870
jesseboo870 jesseboo870
  • 22-06-2018
the sum of neutrons would be 55. (: I hope this helps. because if you minus the mass number by the atomic number which is always equivalent to the number of protons, you get the amount of neutrons. The amount of protons and neutrons always add up to the mass number.
 
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