Metals, Nonmetals

and Metalloids

TEKS 6.6A compare metals, nonmetals and metalloids using physical properties such as luster, conductivity or malleability

TEKS 8.5C interpret the arrangement of the Periodic Table, including groups and periods, to explain how properties are used to classify elements

Video

Elements are classified into three groups on

the Table.

The groups are metals, metalloids and nonmetals.

Elements in the same group have similar physical and chemical properties.

Physical properties are:•Luster = reflect light.

(metallic or nonmetallic).

•Conductivity = conducts electricity.

Tested with a conductivity meter.

•Malleability = can be hammered into sheets without breaking.

https://www.youtube.com/watch?v=c382ziUpbbc

•Ductility = can be pulled into a thin wire.

https://www.youtube.com/watch?v=c382ziUpbbc

•Brittle = breaks easily.

•Magnetic

METALS are..

•on the left of the zigzag on the

Table.

METALS

BrainPop Metals

METALS are..1) Solid at room

temperature.*Except for mercury,

which is a liquid.

METALS are..

2) Good conductors of electricity and heat.

*But some are better conductors than others!

METALS are…

3) Lusterous which has a shiny/metallic appearance.

METALS are..4) Malleable and can be hammered into sheets

without breaking.

METALS are..5) Ductile and can

be drawn into wire.

METALS are..6) Sometimes

Magnetic

NONMETALS are…

•on the right of the zigzag line on the Table.

nonmetals

1) Solid, liquid or gas at room

temperature.

NONMETALS are…

NONMETALS are…

2) Bad (Poor) conductors of electricity and

heat.

NONMETALS are…3) Not lusterous and not shiny/nonmetallic in appearance.

NONMETALS are…

4) Brittle when they are solid.

NONMETALS are…

5) Never Magnetic

•On the zigzag line on the Table.

METALLOIDS..

metalloi

ds

*Exception is Aluminum. It is considered to be a metal

even though it lies along the

zigzag.

•Have no set characteristics.

•Share properties of both metals and nonmetals

METALLOIDS..

Examples•Good Conductor and Brittle

•Lusterous and Brittle•Magnetic and Brittle.

boron, silicon,

germanium, arsenic,

antimony, tellurium

and polonium .

Metalloids

include: