Above is an Orbital Diagram for Argon. Each arrow represents an electron Argon has. The 1s, 2s, 2p, 3s, and 3p represent the subshells.
Above is the Lewis Dot Diagram for Argon. AS you can see, there are 8 dots surrounding the symbol for Argon. Each dot represents one of the Valence Electrons Argon has.
Above is a picture of a procedure fixing an eye defect using blue Argon laser.