67
Transition Metals
them look like silver – a trick still used to make
inexpensive ornamental objects. Nickel is also
mixed with copper to make an alloy called
cupronickel. This is used as plating on propellers
and other metallic parts of ships, as the alloy does
not corrode in seawater. The same alloy is used
in most of the world’s silver-coloured coins.
Nickel is used in the strings of electric
guitars. This element is added to chromium
to make an alloy called nichrome. Wires made
of this alloy conduct heat very well, so are
used in toasters.
Uses
Rust-resistant
handle
This nickel-plated
instrument has
a shiny finish.
The US five cent
coin is made of an
alloy of 75% copper
and 25% nickel.
This silver-coated
fork is made of an
alloy of nickel,
copper, and zinc.
These nickel-plated
guitar strings help
create a clear tone.
Nickel alloy wires
heat up to make toast.
Toaster
Nickel-plated dagger
Electric guitar
Nickel-copper alloy
plating makes propellers
strong and durable.
Ship propeller
This coin
from the USA,
made of a nickel-
copper alloy,
is called a
Nickel
Nic
keline Nicke
l-based
(^) co
in
Nickel^ goblet^ drum
A temporary magnet works when it is put in a magnetic
field, but a permanent magnet retains its charge even when
it is taken out of that field. Nickel is one of only a few
elements that can be used to make permanent magnets.
- Atoms in a piece of nickel
metal are arranged randomly. - When a magnetic field
is applied, the atoms align
in one direction. - The atoms then stay aligned
and produce a magnetic field of
their own, even after the external
field is removed.
PERMANENT MAGNETS
Nickel cutlery
066-067_Nickel.indd 67 12/12/16 5:38 pm