Radon

Radon
	Atomic Number: 86 Atomic Weight: 222 Melting Point: 202 K (-71°C or -96°F) Boiling Point: 211.45 K (-61.7°C or -79.1°F) Density: 0.00973 grams per cubic centimeter Phase at Room Temperature: Gas Element Classification: Non-metal Period Number: 6 Group Number: 18 Group Name: Noble Gas