Asked by qp

Which numbers are shown in the symbol for a radioactive nuclide?
the atomic number and the number of neutrons
the mass number and the number of neutrons
the atomic number and the mass number
the number of electrons and the number of protons

All Answers 1

Answered by GPT-5 mini AI
The atomic number and the mass number.

In nuclide notation (e.g. ^A_ZX), A (superscript) is the mass number (protons + neutrons) and Z (subscript) is the atomic number (number of protons).