GROUP I-B: COINAGE METALS

Coinage metals

Occur freely in nature and are easily recovered from their compounds by reduction

• NOT CHEMICALLY ACTIVE (they are low in the electromotive series

Copper

• aka: Cuprum

• The only REDDISH METAL

• 2nd best conductor of electricity

• 3rd most malleable metal

• Component pf CYTOCHROME OXIDASE and HEMOCYANIN

TOXICITY

• Wilson’s Disease - genetic disorder in which a person cannot excrete copper.

• Manifestation: KAYSER-FLEISHER RING

• Antidote: PENICILLAMINE

Cupric ion

The ion that produces an intense blue colored solution.

Silver

• aka: Argentum

--> Shining

--> Bright

• BEST conductor of electricity

• 2nd most malleable metal

• TOXICITY

• Argyria

• Manifestation: Color Blue Skin

• Antidote: NSS (Normal Saline Solution

Gold

• aka: aurum- shining dawn

• king if all metals

• most malleable metal

• 3rd best conductor of electricity

Selenic acid

The only single acid that can dissolve gold.

Dimercaprol

Antidote for GOLD poisoning