On which atomic property proposed by Henry Moseley is the current periodic table of the elements based?

1 answer

The current periodic table of elements is based on the atomic number, which was proposed by Henry Moseley. Moseley's work in the early 20th century established that the atomic number (the number of protons in the nucleus of an atom) is the fundamental property that determines the arrangement of elements in the periodic table, rather than atomic mass, which was used in earlier versions of the table. This shift to organizing elements by atomic number allowed for a more accurate and consistent classification of the elements.