Anonymous asked in Science & MathematicsChemistry · 8 months ago

Which of the following elements are stable as atoms? Se He F Ar?

6 Answers

  • 8 months ago
    Favourite answer

    Helium and Argon. They are both noble gases and their outer electron valence she's are completely filled with electrons.

  • Anonymous
    8 months ago

    All of them have stable isotopes.

  • 8 months ago

    All a stable.

    However, He(Helium) & Ar(Argon) are monatomic. that is they exist as single atoms.

    F (Fluorine) is diatomic , that is it exists as a pair of combined atoms (F2) .

  • 8 months ago

    All of them except F, which is diatomic.

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  • Lôn
    Lv 7
    8 months ago

    Helium and Argon....they are noble gases.

    Selenium also exists as single atoms.

    Fluorine exists as molecules.

    He, Ar , Se , F2 .

  • KennyB
    Lv 7
    8 months ago

    Not sure of what you are trying to ask...but the answer is "All of them"

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