Page 88 - The Periodic Table Book

48
Cd Cadmium

48 48 64 State: Solid
Discovery: 1817
Transition Metals This mineral contains a rare has a bluish tinge. Nickel- cadmium battery Cadmium and This deep red pigment
Forms
Uses
contains powdered
This soft metal
cadmium oxide.
form of cadmium sulfide, a
nickel layers
compound of cadmium and sulfur.
create electricity in
this rechargeable
battery.

Pellet of pure cadmium
refined in a laboratory

The yellow colour of
this zinc mineral is due
to cadmium impurities. This electronic
component used
Red paint
in circuits contains containing cadmium
a compound of
cadmium and sulfur.
Greenockite Light-sensitive Cadmium-covered
screws do not rust.
resistor
Smithsonite

This research sample is being Cadmium-plated
viewed under ultraviolet (UV) light screws
produced by a cadmium laser.

Fluorescent microscope

Cadmium is a highly toxic metal, and is mainly used in conjunction with nickel in
known to cause cancer. This rare element is rechargeable batteries. The compound
found in the ore greenockite, but it is mostly cadmium oxide was once used in preparing
obtained as a by-product of zinc extraction. red paints, but not anymore because of its
Cadmium was discovered in 1817 from a toxicity. Cadmium is also used to create lasers
86 mineral called calamine. Today, this metal is for use in powerful microscopes.

086-087_Cadmium-Hafnium.indd 86 12/12/16 5:38 pm