The atomic number of an element is equal to the number of

Consider the following statements I.Henry Moseley observed regularities in the characteristics of X ray spectra of elements II.A plot of frequency of X rays emitted against atomic number (Z) give a straight line III.The atomic number of element is equal to the number of neutron(s)in a neutral atom IV.Electron configuration of an atom determine the physical and chemical properties Choose the correct statement

Atomic number of an element is equal to the number of (1) Electrons (2) Protons (3) Neutrons (4) Electrons and protons

The atomic number of an element is always equal to

The atomic number of element Unq is:

The atomic number of an element is 16. Predict the number of valence electrons in its atom

Is atomic number of an atom alwayus equal to the number of electons?