Question

coordination number (CN) of barium iron (Ba²+) in Baf2 is 8. what is the CN of F -iron

Answer 1

Answer:

The answer is 4

Explanation:

As BaF2 is in a ccp structure, there will be 2 F- for each Ba2+ ion.

So each F- is surrounded by 4 Ba2+ ion

Answer 2

Concept Introduction:-

An ion is the atom as well as molecule with a internet electric charge.

Given Information:-

We have been given that coordination number (CN) of barium iron$(Ba^{2}+)$ in $Baf_{2}$ is $8$.

To Find:-

We have to find that the CN of $F^{-}$iron

Solution:-

According to the problem

C.N. of $B a^{2+}$ ions suggests that if is surrounded by eight $F^{-}$ions. $(8 \times(-1)=-8)$. In order to balance eight negative charges, we need four  $B a^{2+}$ ions. ∴C.N. of $F^{-}$ions $=4$

Final Answer:-

The CN of $F^{-}$iron is $4$.

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