Answer : % ionic character is 0.20%
Bonding between the two metals will be purely metallic.
Explanation: For the calculation of % ionic character, we use the formula
![\% \text{ ionic character}= [1-e^{\frac{-(X_A-X_B)^2)}{4}}]\times(100\%)](https://tex.z-dn.net/?f=%5C%25%20%5Ctext%7B%20ionic%20character%7D%3D%20%5B1-e%5E%7B%5Cfrac%7B-%28X_A-X_B%29%5E2%29%7D%7B4%7D%7D%5D%5Ctimes%28100%5C%25%29)
where
&
are the Pauling's electronegativities.
The table attached has the values of electronegativities, by taking the values of Al and Mn from there,
![X_{Al}=1.61](https://tex.z-dn.net/?f=X_%7BAl%7D%3D1.61)
![X_{Mn}=1.55](https://tex.z-dn.net/?f=X_%7BMn%7D%3D1.55)
Putting the values in the electronegativity formula, we get
![\% \text{ ionic character}= [1-e^{\frac{-(1.61-1.55)^2)}{4}}]\times(100\%)](https://tex.z-dn.net/?f=%5C%25%20%5Ctext%7B%20ionic%20character%7D%3D%20%5B1-e%5E%7B%5Cfrac%7B-%281.61-1.55%29%5E2%29%7D%7B4%7D%7D%5D%5Ctimes%28100%5C%25%29)
= 0.20%
Now, there are 3 types of inter atomic bonding
1) Ionic Bonding: It refers to the chemical bond in which there is complete transfer of valence electrons between atoms
2) Covalent Bonding: It refers to the chemical bond involving the sharing of electron pairs between 2 atoms.
3) Metallic Bonding: It refers to the chemical bond in which there is an electrostatic force between the positively charged metal ions and delocalised electrons.
In
compound, the % ionic character is minimal that is
0.20% and there are two metal ions present, therefore this compound will have metallic bonding.