Answer : The chemical formula for the compound is, [tex]MI[/tex]
Explanation :
When the element 'M' react with the [tex]I_2[/tex] to give [tex]MI[/tex].
The balanced chemical reaction is,
[tex]2M+I_2\rightarrow 2MI[/tex]
In this reaction, 'M' is in mono-atomic form and [tex]I_2[/tex] is in diatomic form.
By the stoichiometry,
2 moles 'M' react with the 1 mole of [tex]I_2[/tex] to give 2 moles of [tex]MI[/tex].
Therefore, the chemical formula of the compound is, [tex]MI[/tex]
