A nucleus represented by the symbol `._Z^AX` has.

Options

A. `Z` neutrons and `A-Z` protons
B. `Z` protons and `A-Z` neutrons
C. `Z` protons and `A` neutrons
D. `A` protons and `Z-A` neutrons

Answer

B

Explanation

(b) `._Z X^A` has number of protons `= Z`
and number of neutrons `N = A - Z`
where `A` is the total number of protons and neutron,
i.e., `A = Z + N`.