Thank you for reporting, we will resolve it shortly
Q.
Beryllium and aluminium exhibit many properties which are similar. But the two elements differ in
NTA AbhyasNTA Abhyas 2022
Solution:
Be $\left[Z = 4\right]$ has maximum covalency of 4 while $Al$ $\left[Z = 13\right]$ has maximum covalency of 6. In rest other properties they behave similarly due to diagonal relationship.