Argon

__ SYMBOL ATOMIC NUMBER ATOMIC MASS #OF PROTONS #OF NEUTRONS #OF ELECTRONS __ Ar 18 39.948 18 22 18

__ MELTING POINT BOILING POINT NORMAL PHASE __ -189.35 degrees C -185.85 degrees C Gas

COST= $0.5 for 100g CLASSIFICATION: Nonmetal FAMILY: Noble Gas Family ORIGIN OF NAME: From the Greek word for inactive. DISCOVERED BY: Sir William Ramsay DATE DISCOVERED: 1894

FACTS
 * Makes up 0.93% of the earths atmosphere
 * Used when an inert atmosphere is needed
 * Used for growing semiconductor crystals
 * Used in elctric light bulbs and flurescent tubes
 * Used in medical lasers to correct eye defects
 * Prepared by factionating liquid air

Page by: BECCA RUTH SCHERTING