Electron Configuration of Cr0

Question

What does the superscript ⁰ mean?

 

The question asks for the electron configuration of Cr⁰

I know if its plus or minus you subtract or add electrons based on that number but what do you do when there is a ⁰ ?

Answer 1

One can assume thst superscript 0 means the neutral element although that is not the usual convention.