Question

From the first 20 elements, can you name an element made up of diatomic molecules with a single bond between the atoms?

Answer 1

Among the first 20 elements, hydrogen gas `("H"_2")`, fluorine gas `("F"_2")`, chlorine gas `("Cl"_2")` are made up of diatomic molecules with a single bond between the atoms.

Explanation:

Hydrogen gas: `("H":"H")`

Fluorine gas: `("F":"F")`

Chlorine gas: `("Cl":"Cl")`