Modern Chemists (9 gen 1600 anni – 9 magg 2018 anni)
Descrizione:
Modern chemists started to break down substances to find new elements. Modern chemists have discovered that atoms are a group of protrons and neutrons collected in the middle of the atom with elecctons surronding it the atom is mostly empty space.Aggiunto al nastro di tempo:
Data:
9 gen 1600 anni
9 magg 2018 anni
~ 418 years