5 янв 1904 г. - Richard Abegg found that inert gases have a “stable electron configuration.”
Описание:
SEC is a chemically stable configuration. For example, helium, neon and argon are exceptionally stable and unreactive monoatomic gases.Добавлено на ленту времени:
Дата:
5 янв 1904 г.
Сейчас
~ 120 г назад
