There are currently 118 known elements on the periodic ... Ar is Argon. Argon is a colorless and odorless gas that is present ...

Scientists use the periodic table to quickly refer to information about an element, like atomic mass and chemical symbol. The periodic table’s arrangement also allows scientists to discern trends in ...

Mrs Roberts: So, the chemical symbol is Al. See if you can see it in the periodic table. Cal: OK. It is. It's on the right hand side. It's right there. Magic. OK, well I might have been able to ...