A nucleus represented by the symbol z X a has
(a) A protons and Z-A neutrons
(b) Z neutrons and A-Z protons
(c) Z protons and A-Z neutrons
(d) Z protons and A neutrons
A nucleus represented by the symbol z X a has
(a) A protons and Z-A neutrons
(b) Z neutrons and A-Z protons
(c) Z protons and A-Z neutrons
(d) Z protons and A neutrons









