30 dic 1913 año - Henery Mosley rearranged the table.
Descripción:
He re ordered them by atomic number, rather then weight because he found it to be a much better "fit."
https://www.sciencelearn.org.nz/resources/1804-development-of-the-periodic-table
Añadido al timeline:
fecha:
30 dic 1913 año
Ahora mismo
~ 110 years ago