Question

An atomic number of the four elements $A,B,C$ and $D$ are respectively $Z^{-},Z,Z^{+}$ and $Z^{+2}$. If Z =$9$, what is the type of bonding between $A$ and $D$?

• A. Ionic
• B. Covalent
• C. Dative
• D. None of these

Answer 1

Answer: (A)

Ionic

Atomic Number of A is $9-1=8$ i.e., oxygen.

Atomic Number of D is $9+2=11$ i.e., sodium.

They will form ionic compound i.e. $N{a}_{2}O$.