Question

Two elements $X$ and $Y$ combine to form a compound $XY$. Under what conditions the bond formed between them will be ionic?

• A. If the difference in electronegativities of $X$ and $Y$ is $1.7$
• B. If the difference in electronegativities of $X$ and $Y$ is more than $1.7$
• C. If the difference in electronegativities of $X$ and $Y$ is less than $1.7$
• D. If both $X$ and $Y$ are highly electronegative

Answer 1

Answer: (B)

For the formation of an ionic bond, the electro - negativities of two atoms should differ by more than $1.7$.