Respuesta :

TheUnknownScientist

Answer:

The Atomic number is 17 and Mass number is 35

Explanation:

Given;

  • No. of protons = 17
  • No. of neutrons = 18

To Find;

  • Atomic number
  • Mass number

So, For Atomic number

Atomic Number = No. of protons = No. of electrons = 17 (Which is Chlorine {Cl} )

Now, For Mass number

Mass number = No. of protons + No. of neutrons

Mass number = 17 + 18 = 35

Thus, The Atomic number is 17 and Mass number is 35

 

-TheUnknownScientist 72

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