So in words, element mass number notation can be used instead of standard nuclear notation right?

Both the Element-Mass Number notation (e.g., Chlorine-37) and the Standard Nuclear Notation (e.g., $^{37}_{17}\text{Cl}$) are valid ways to identify and refer to a specific isotope.

The Element-Mass Number notation is often used in general discussion because it's simpler to write and say. The Standard Nuclear Notation provides more explicit detail (atomic number, mass number, and symbol) which can be useful in more technical contexts, especially when discussing nuclear reactions.