N'otu aka ahụ, a na-eji mkpụrụedemede ndị a eme ihe n'ihe ọmụmụ nke X-ray absorption nke Charles Barkla na Henry Moseley. Barkla jiri mkpụrụedemede K, L, M, N, O, P, na Q. Mmalite nke okwu a bụ mkpụrụedemede. A na-echekwa usoro "J", ọ bụ ezie na nnwale ndị ọzọ gosiri na akara absorption K na-emepụta site na elektrọn dị n'ime. E mechara chọpụta na mkpụrụedemede ndị a kwekọrọ n'ụkpụrụ n 1, 2, 3, wdg. A na-eji ha eme ihe na nyocha nke Siegbahn spectroscopic. Ajụjụ: Ònye ka a na-akpọ mkpụrụedemede elektrọn?
Barkla