Question

Which element, when combined with Fluorine would most likely form a covalent compound?

Aluminum (Al)
Sulfur (S)
Potassium (K)
Calcium (Ca)

Answer 1

Sulphur

Explanation:

When Fluorine reacts with Aluminium,$AlF_{3}$ is formed.Since $Al$ is metal and $F$ is non metallic,the compound has ionic nature.

When Fluorine reacts with Sulphur,$SF_{6}$ is formed.Since $S$ is non metal and $F$ is also non metallic,the compound has prevalent covalent nature.

When Fluorine reacts with Potassium,$KF$ is formed.Since $K$ is metal and $F$ is non metallic,the compound has ionic nature.

When Fluorine reacts with Calcium,$CaF_{2}$ is formed.Since $Ca$ is metal and $F$ is non metallic,the compound has ionic nature.