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msbabypinkx
msbabypinkx msbabypinkx
  • 11-01-2017
  • Biology
Answered

ONE QUICK PHYSICAL SCIENCE QUESTION

  1. Why isn’t it possible for an atom to have a mass number of 15 and an atomic number of 18?

Verified Answer :

Anonymous Anonymous
  • 11-01-2017

An
atom with an atomic number of 12 has 12 protons. Because the mass
number is the sum of the protons and neutrons, the mass number would
need to be at least 12. I hope this helped!

Answer Link

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