What Do They Call Different Types of Tags?

Are there formal terms to differentiate between nodes like
<br />
and nodes like
<p></p>
?

If there are, what are they?

Tags such as <br /> or <img src="foo.gif" /> are known as 'empty tags'.
Tags such as <p>foo</p> or <a href="foo">bar</foo> are 'container tags'
The first tag (<p>, <br />) is the 'start tag' and the end tag (</p>) is, oddly enough, the 'end' tag.
They are also referred to as 'opening' and 'closing' tags.

Thanks