Question

Name the atom /isotope chosen as the standard reference for measuring mass

Answer 1

Answer:

So the Atomic Mass of Carbon-12 is defined to be 12 exactly and all other atomic, molecular and formula masses are referred to this standard.” Source : Why is Carbon-12 used as the reference isotope? One reason behind it is that it has an equal no. Of protons as well as electrons .

Answer 2

Answer:

Explanation:

I think its carbon..

Hope it helps