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Chemistry
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Does a nucleus designated as 40X18 contain,

  1. 20 neutrons and 20 protons
  2. 22protons and 18 neutrons
  3. 18 protons and 22 neutrons
  4. 40 protons and 18 neutrons

 

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Muntasir Kadri
Muntasir KadriLv4
30 Dec 2020

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