I’m not sure whether there is a general rule to how isotopes are meant to be wrote but in videos that I have come across and webpages, they’re all wrote like.
Hydrogen-1,
Hydrogen-2, etc.
In the course that I am doing, they’ve wrote their isotopes like this… ²Hydrogen with the superscript at the beginning. I know the symbol notation requires superscript and subscript before the chemical symbol.
Is there a strict way to write the isotopes? Or are both considered okay?
Regards