Question

If four points where position vectors are a,b,c,d are coplanar show that [abc]=[adb]=[adc]=[dbc]

Answer 1

Explanation:

The lattice energy depends on the attraction between the oppositely charged ions.

The force of attraction

F

is directly proportional to the charges (

q

1

and

q

2

) on the two ions and on the distance

r

between them.

F

=

q

1

q

2

r

2

The distance between the charges

r

is the sum of the ionic radii.

r

=

r

anion

+

r

cation