(Cues Tom Lehrer
)
One interesting thought, almost a 'pet peeve', that I have had for a loooong time regarding the elements involves the discovery dates for some of them. When the descriptions of several of them give 'known to ancients', I think 'yes, these substances were
known by ancient people, *BUT* - when were they first described as having their own special spots on the periodic table?'. To me, the 'discovery date' for those elements would be when they were first described as being true chemical elements as we know them. Thus, I would think that the discovery dates for elements such as gold, silver, iron, copper, lead and so forth would be in the 1600s or 1700s, at the very earliest.
Mike
The elements known to ancients weren't known as elements as we know them today. Our modern definition of chemical element was developed by Anton Lavoisier in the mid to late 1700s.