Question

give the representation of isotopes of carbon which are C-12, C-13, C-14?

Answer 1

The three isotopes of carbon as given by you are represented as follows

¹²₆C, ¹³₆C and ¹⁴₆C

Here, C is the symbol for carbon, the numbers written in the superscript represent the mass number while the numbers written in the subscript represent the atomic numbers.