[cioffiio]

Hi , this is a simple question , i'm not english so i hope you can understand well

the question is this:

Is possible to have an element with ALL atoms differents? (for the   mass number, for example)

i know that atoms of the same element cannot be defined "same" ,but it is correct to call them "of the same species" , because they can have different number of  mass


thank you all

[ifuller]

Are you talking about a molecule that has different isotopes of the same element? For example an element with hydrogen and deutrium?

[profmsg]

if you put more than one type of atoms than that is called compound. so  in my view, its not possible to name something with different atoms as elements.