The first ionization energy, E , of a nitrogen atom is 2.32 aJ. What is the wavelength of light, in nanometers, that is just sufficient to ionize a nitrogen atom? Values for constants can be found in the Chempendix.

Henry moseley used x-ray experiments to determine the atomic number of elements. how did his discovery contribute to the development of the periodic table? a. it confirmed that elements should be arranged in strict order of increasing atomic mass. b. it led to elements with similar atomic numbers being grouped together. c. it allowed the elements to be placed in strict order of increasing atomic number. d. it showed that the way mendeleev grouped elements together was completely wrong.