1 janv. 1913 - Moseley
Description:
Moseley had discovered that the basic difference between elements is the number of protons they have. He realized that an element is defined by its number of protons. He found a relationship between the frequencies of corresponding lines in the X-ray spectra. In a paper published in 1913, he reported that the frequencies are proportional to the squares of whole numbers that are equal to the atomic number plus a constantAjouté au bande de temps:
Date:
1 janv. 1913
Maintenaint
~ Il y a 112 ans