SQL Server for xml path add attributes and values

hi i want to create an xml node that contains attributes as well as values.

Example:

<mynode attr1="hello">world</mynode>

I understand that

SELECT 'hello' as '@attr1' 

creates at least mynode, but how to attach "world" then?

I tried

SELECT 'world' as 'mynode/[@attr1=hello]' 

but didnt work