Which of the following is incorrect ?

Options

A. Henry Moseley observed regularities in the characteristics X-ray spectra of elements
B. A plot of frequency of X-ray emitted against atomic number (Z) given a straight line
C. The atomic number of an element is equal to the number of neutron (s) in neutral atom
D. Electronic configuration of an atom determines the physical and chemical properties

Explanation

The atomic number of elements is equal to the number of electron/number of proton in a neutral atom Z = number of `e^(-)//p^(+)`
A = number of proton + number of neutron