does f5- ion exist. explain
Answers
Answer:
No it can't exist because no element can gain 5 elements
No, F₅⁻ ion does not exist.
• F is the symbolic representation of the element fluorine.
• Fluorine has an atomic number of 9. Therefore, its electronic representation is (2,7).
• According to the rule of octet, an element must have 8 electrons in the valence shell.
• Having 7 electrons in the outermost shell, fluorine needs to gain only one electron to complete its octet, and thereby, forms the F- anion.
• Now, F₅⁻ ion can only be formed if the fluorine atom gains 5 electrons, which is impossible, because it would then have 4 extra electrons in the valence shell after completing the octet in the penultimate shell.
• This would again break the rule of octet and make the element unstable. Therefore, the existance of F₅⁻ ion is not possible. Only F ⁻ ion exists in practicality.