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I’m sorry it’s a bit messy but If you need me to tell you any of the numbers that are hard to see just let me know!
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Explanation:

  • Isotopes are defined as atoms of the same element but differ in the number of neutrons in their nucleus where a number of protons and electrons remain the same.
  • Ions are defined as chemical species of an atom with an electrical charge.IO with a positive charge are called cations, and ions with a negative charge are called anions.
  • Atom has three subatomic particles: protons, electrons, neutrons
  • Atomic number (Z)= Number of protons
  • Number proton = Number of electrons (isoelectric neutral atom)
  • Atomic mass (A)= Number of protons + Number of neutrons

The chemical symbol of an element X is written as:[tex]^A_ZX^C[/tex]

Where : Charge on ion = C

Learn more about atomic mass and the atomic number here:

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