1 янв 1913 г. - Moseley
Описание:
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 constantДобавлено на ленту времени:
Дата:
1 янв 1913 г.
Сейчас
~ 112 г назад