Question

The symbol of the isotope of elements contains atomic number and mass number.
If true enter 1, else enter 0.

Answer 1

The symbol of the isotope of element contains, at the upper left is the atomic number. In the middle is the letter symbols for the element. Below is the relative atomic mass, as calculated for the isotopes found naturally on earth. At the very bottom is the name of the element.
The given statement is true.