22 апр 1913 г. - Henry Moseley - Rearrangement of Periodic Table (1913)
Описание:
Moseley discovers a more effective way to group elements on the periodic table based on the number of protons an element has in its nucleus. This number is known as an element's atomic number. Moseley also predicted four undiscovered elements which were found in later years.Добавлено на ленту времени:
Дата:
22 апр 1913 г.
Сейчас
~ 112 г назад