addiej221
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Can someone help explain this to me? Im really confused because I thought that protons and neutrons are equal in a neutral atom, how are you supposed to find the number of neutrons? How is my answer wrong? The only element close to having a mass number of 15 is Nitrogen so I don't see how the answer would be Oxygen, since oxygen has a mass number of 16.​

Can someone help explain this to me Im really confused because I thought that protons and neutrons are equal in a neutral atom how are you supposed to find the class=

Respuesta :

ropafadzonyadome

Explanation:

  • atomic number=number of proton
  • mass number=number of protons +number of neutrons
  • number of protons = number of electrons
  • its probably an error on the number of neutrons but oxygen has 8 electrons

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