Which of the following elements are stable as atoms? Se He F Ar?
- CarolOklaLv 78 months agoFavourite answer
Helium and Argon. They are both noble gases and their outer electron valence she's are completely filled with electrons.
- Anonymous8 months ago
All of them have stable isotopes.
- lenpol7Lv 78 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) .
- Roger the MoleLv 78 months ago
All of them except F, which is diatomic.
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- LônLv 78 months ago
Helium and Argon....they are noble gases.
Selenium also exists as single atoms.
Fluorine exists as molecules.
He, Ar , Se , F2 .
- KennyBLv 78 months ago
Not sure of what you are trying to ask...but the answer is "All of them"