Joey was taking a chemistry test. in one question, he was asked to write the electron configuration for antimony (sb). he wrote it out like this: 1s22s22p63s23p63d104s24p64d105s25p3

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.