meimeiratchforp4x8jp meimeiratchforp4x8jp
  • 19-05-2018
  • Chemistry
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How many neutrons does an element have if its atomic number is 40 and its mass number is 154

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robinsonizegbup3sp4o robinsonizegbup3sp4o
  • 21-05-2018
I am not sure about this answer 194
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