Answer:
Symbol Co
Atomic Number 27
Atomic Mass 8.9332 atomic mass units
Number of Protons 27
Number of Neutrons 32
Number of Electrons 27
Melting Point 1495.0° C
Boiling Point 2870.0° C
Density 8.9 grams per cubic centimeter
Normal Phase Solid
Family Transition Metal
Period Number 4
Cost $21 per 100 grams