The Brigadier: Archived.

A cache by $1.39 Message this owner

Hidden : 12/11/2013

Size: Size: micro (micro)

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Geocache Description:

The Element Promethium

Atomic Number: 61

Atomic Weight: 145

Melting Point: 1315 K (1042°C or 1908°F)

Boiling Point: 3273 K (3000°C or 5432°F)

Density: 7.26 grams per cubic centimeter

Phase at Room Temperature: Solid

Element Classification: Metal

Period Number: 6 Group Number: none Group Name: Lanthanide

Additional Hints (No hints available.)