id to <article> &<section>.

Question

1)i want to give id to <article> &<section>.  what is the right way to provide id<article>

 2) can i use structure like

 

<section class="container-main"> 

<article id="itemContainer">
<aside>

<h3></h3>

<p></p></aside>

</article>

 </section>

 

 

 

i want to use jquery and i want to pass id of<artical>  what is the right way to provide id <article>