MeShelJai MeShelJai
  • 09-03-2017
  • Chemistry
contestada

If an atom has 34 protons and 40 neutrons, what is its mass number?

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jordangross32 jordangross32
  • 09-03-2017
The answer is 74.........
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Star2012
Star2012 Star2012
  • 09-03-2017

add the protons and neutrons together to get the mass number


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