Question

BF6- is unstable why ?​

Answer 1

Answer:

Boron is a non-metallic element. It is electron-deficient. It does not possess d orbitals in its valence shell. ... Therefore, boron is unstable to form BF6 3- ion

Answer 2

Answer:

Boron does not have d orbitals in its valence shell Hence, maximum covalency of boron can not exceed 4.

Thus, boron is unstable to form BF 3-ion

I hope this will help.

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