1. A
element like iron is a
conductor of heat and electricity and
in appearance.
2. The element
is a
and a
conductor of heat and electricity and a dull looking yellow solid.
3. Metals are chemically
from a mineral
.
4. The metal
has been used for jewellery for thousands of years because it does not
easily.
5a. Houshold wiring is made of
because it is a
conductor of
, but it is protected by plastic which is a
conductor.
5b. Copper is also a good
of
and so is used for cooking pots.
6. Steel is coated in
in a process called galvanising to stop it
.
7. Nails are made of
or steel because they are so
.
8. Graphite is a form of the element
. It is unusual because it is one of the few non-metal elements which is quite a
conductor of
and electricity.