6 U2 - 6(A) compare metals, nonmetals, and metalloids using physical properties such as
luster, conductivity, or malleability;
atom
Smallest particle of
an element.
Element
A pure substance
made of only one
kind of atom
Brittle
A physical
property; tendency
to break, snap, or
crack without first
bending or
changing shape as
a result of
application of little
force; an example
is glass, which
shatters easily.
color
Flammable
When a
substance will
burn instead of
melt
Conductor
A substance that
allows the flow of
electric charge or
transfers thermal
energy through
matter.
DUCTILE
A term used to
describe a
material that can
pulled into a long
wire.
What does ductile mean?
Drawn into thin
wires
electrical conductivity
The ability to
conduct electricty.
Wood is a poor
conductor.
Luster
A physical
property; the way
the surface of a
substance shines or
reflects light; most
general
classification is
between metallic
(shiny) and
nonmetallic (dull
or glassy).
hardness
ability of matter to
resist scratching
Insulator
A substance that
resists electric
current, or a
material that resists
the flow of heat.
Malleability
A physical
property; able to
be shaped or
formed into thin
sheets by
hammering or
pressure.
melting point
The temperature at
which a substance
changes from solid
to liquid
Brittle
Non metals tend to
be brittle
reactivity
The tendency of a
substance to
combine with other
elements and
create new
compounds
solubility
The ability of a
substance to be
dissolved in
another
substance
•
SONOROUS
Metals are able
to produce a
ringing sound.
state
texture
The
smoothness
or roughness
of a
substance.
thermal conductivity
Ability to
conduct heat
viscosity
How thick or
resistant to flow a
fluid is.
Molasses is very
viscous while
water is not.
Weight
Physical Property
Metal
elements found on
the left and center
of the periodic
table; usually
solid, are shiny,
conduct electricity,
malleable
metals
Located to the
left of the zig-zag
line. Are
malleable, good
conductors,
ductile, shiny,
and mostly
solids.
Exception:
Hydrogen! It's a
nonmetal on the
left
Metals
Most elements are
metals; they are
typically solid,
shiny, malleable,
and good
conductors of heat
and electricity.
Aluminum
Brass
Bronze
Copper
Gold
•
Iron
Lead
Lithium
Mercury
Nickel
Platinum
Silver
Sodium
Steel
Tin
Zinc
non metals
Located to the
right of the zig-
zag line. Are dull
in appearance,
poor conductors
of heat and
electricity, and
are gases at room
temperature
Exception:
Hydrogen is a
nonmetal on the
left. It's the only
one.
Chlorine
Non Metal
Metalloids
Are found along
the zig zag line.
Remember the
rap: Boron -
Silicon - Down -
Across (WHAT!)
- Down - Across
(WHAT!) -
Down!
METALLOIDS
Elements that
share properties
of both metals
and non-
metals.(Example:
silicon)
Semiconductor
A substance that
displays the
property of
electrical
conductivity
between that of a
conductor and that
of an insulator; the
foundation of
modern
electronics.
Types of Luster