Question

using the symbol M for the element, write the chemical formula for the compound that forms when element M reacts with iodine.

Answer 1

Answer : The chemical formula for the compound is, $MI$

Explanation :

When the element 'M' react with the $I_2$ to give $MI$.

The balanced chemical reaction is,

$2M+I_2\rightarrow 2MI$

In this reaction, 'M' is in mono-atomic form and $I_2$ is in diatomic form.

By the stoichiometry,

2 moles 'M' react with the 1 mole of $I_2$ to give 2 moles of $MI$.

Therefore, the chemical formula of the compound is, $MI$

Answer 2

When the element M connects with Iodine and it attracts a postive reaction which will give you a formula of M+i=iodine