Question
Question: A nucleus, represented by the symbol \({}_{Z}^{A}X\), has –...
A nucleus, represented by the symbol ZAX, has –
A
Z protons and A – Z neutrons
B
Z protons and A neutrons
C
A protons and Z – A neutrons
D
Z neutrons and A – Z protons
Answer
Z protons and A – Z neutrons
Explanation
Solution
ZXA Where, A = mass no. = total no. of proton + no. of neutron
Z = Atomic no. = no. of proton