kea5rokeD5orina
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  • 10-09-2016
  • Chemistry
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if an atom has 17 electrons and its mass number is 35, calculate the following: - number of protons - number of neutrons -atomic number

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Gladvin
Gladvin Gladvin
  • 10-09-2016
Electrons, Protons and the Atomic Number is the exact same. So 
Protons - 17
Atomic Number -  17

and the neutrons come by subtracting the protons from the Atomic Mass, which in this case 35. 
35-17 = 18
Neutrons = 18

Protons = 17
Atomic Number = 17
Neutrons = 18

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