The Student Room Group

Shapes of molecules and ions

Hey guys,

I'm quite confused why Boron is covalently bonded with fluorine in BF3 and BeF3 (isn't beryllium a metal?)
Original post by rm_27
Hey guys,

I'm quite confused why Boron is covalently bonded with fluorine in BF3 and BeF3 (isn't beryllium a metal?)


You are confused ...

... BeF3 does not exist!
Original post by haemo
I'm unsure what you're asking, however:

Boron is in Group 5, meaning it has five outer electrons on its outer shell and needs three electrons.


No it's not, it's in group 3 and has 3 electrons in the outer shell

Original post by haemo

Boron forms a B3+ ion


No it doesn't.
Reply 3
Original post by charco
No it doesn't.


It can in the gas phase.

(pedantry over)

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