Question

Nuclear species or nuclides are shown by the notation ________ where X is the chemical symbol of the species.

Options

• \[\ce{_A^NX}\]

• \[\ce{_Z^NX}\]

• \[\ce{_N^AX}\]

• \[\ce{_Z^AX}\]

Answer 1

Nuclear species or nuclides are shown by the notation \[\ce{\underline{_Z^AX}}\] where X is the chemical symbol of the species.

Explanation:

A and Z represent the species' atomic mass number (total number of nucleons) and atomic number (number of protons), respectively.