Johaan Wolfgang Döbereiner (1 янв 1820 г. – 31 дек 1830 г.)
Описание:
During this time period Johaan, noticed a pattern in 3 elements.He found that the
relative atomic mass of the middle
element lay roughly halfway between the lightest and heaviest elements in the group of three.
Добавлено на ленту времени:
Дата:
1 янв 1820 г.
31 дек 1830 г.
~ 11 years