Most chemical elements on the periodic table are primordial, meaning they've been found naturally since before Earth even existed. Some occur naturally in trace amounts, existing only because they are continually produced on Earth through natural processes. The rest are synthetic, and exist only if created artificially. Wikipedia has lists of chemical elements existing in trace amounts and synthetically.
Attributes | Values |
---|---|
rdfs:label |
|
rdfs:comment |
|
dcterms:subject | |
abstract |
|