whatis different between open and close htlm tag

Question

its important for me plz ans quick

Answer 1

All html elements that have opening and closing tags have both tags enclosed in these brackets: <>. However the closing tag has a slash ( / ) preceding it.

Answer 2

The slash(/) at the close tag<></>

Answer 3

<></>

Answer 4

By the way, what's the name of those brackets?🙈
<>