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All oxygen atoms have several things in common:

  1. Same Atomic Number: All oxygen atoms have an atomic number of 8, which means they have 8 protons in their nucleus.

  2. Same Chemical Symbol: Oxygen atoms are represented by the chemical symbol "O" in the periodic table.

  3. Same Electron Configuration: Oxygen atoms have the same arrangement of electrons in their electron shells. Specifically, they have 2 electrons in the first shell and 6 electrons in the second shell.

  4. Same Valence Electrons: Oxygen atoms have 6 valence electrons, which are the electrons in the outermost energy level. The number of valence electrons determines the atom's chemical properties and its ability to form chemical bonds with other atoms.

  5. Same Mass Number: While the mass of individual oxygen atoms can vary slightly due to isotopes, all oxygen atoms have a mass number of around 16, which corresponds to the combined number of protons and neutrons in the nucleus.

It's important to note that these characteristics are specific to oxygen atoms, and other elements may have different properties and atomic configurations.

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