Respuesta :

quasarJose

Answer:

Atomic number or number of protons

Explanation:

The given species are all isotopes of oxygen. Isotopes have the same number of protons or atomic number. They only differ in the number of neutrons.

  • Isotopy is the existence of two or more atoms of the same elements having the same atomic number but different mass number.
  • The different mass number is due to differences in their number of neutrons.
  • Isotopes have the same electronic configuration and hence, they have the same chemical properties.
  • Isotopes only differ in their masses.

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