Question

Lewis structure for KrF2?

and what would be the electron and molecular geometry?

Answer

Kr the atom:

4th S (II) , 4th P's (II) (II) (II) , 4th D's ( ) ( ) ( ) ( ) ( )

Kr energized for 2 covalent bond:

4th S (II) , 4th P's (II) (II) (I ) , 4th D's (I ) ( ) ( ) ( ) ( )

one Fluorine can bond ith the lone electron in the 4thP, the other Fluorine will bond with the lone electron in the "expanded shell" 4th D

the electron Pair geometry is that of any SP3D, trigonal bipyramid

the molecula geometry has the 3 non-bonded pairs of electrons at the center equitorially,

which allows the fluorines to bond at the poles

your molecular shape is Linear

see

http://www.chemistryland.com/CHM151W/08-…

http://en.wikipedia.org/wiki/Krypton_dif…

Jul 21 at 18:2