Question

In the element above the mass number is Press enter key to drop response here.Response input area and the atomic number is Press enter key to drop response here.Response input area.

Answer 1

Usually in nuclear notation the mass number (A) is the superscript (upper left) and the atomic number (Z) is the subscript (lower left).

- Mass number (A) = number of protons + neutrons (e.g. 14 in 14⁶C).
- Atomic number (Z) = number of protons (e.g. 6 in ¹⁴₆C).