Do Now

properties

metalloids

atomic mass

chemical symbol

metals

Looking at the photo

do you think metal

conducts electricity?

Lightning is a form of

electricity and it seems

to follow through the

metal rod.

• More than three-quarters of the elements on the periodic table are metals.

• With the exception of hydrogen, all of the elements in groups 1-12 on the periodic table are metals.

• Some of the elements in groups 13-15 are metals.

What is a metal?

http://connected.mcgraw-hill.com/

To be a metal, an element must have certain properties.

What is a metal? (cont.)

How does the position of an element on the periodic table allow you to determine if the element is a metal?

What is LUSTER?

What is a metal? (cont.)

shine

What is Ductility?

What is a metal? (cont.)

shine

be pulled thin

into wires

What is Conductivity?

What is a metal? (cont.)

shine

be pulled thin

into wires

heat electricity

What is Malleability?

What is a metal? (cont.)

shine

be pulled thin

into wires

heat electricity

Be hammered or

rolled into sheets

Alkali Metals (GROUP 1)  

1.React   2. appearance  •

QUICKLY

silvery

Soft

Na

Alkaline Earth Metals (GROUP 2)

 1.React but not as quickly as Alkali metals. 2. appearance   •

 

QUICKLY

silvery

SoftMg

Transition metals(GROUPS 3-12)

 1.Less  2.Higher points  •Greater   

reactive

melting

strengthAu

Metallic properties include luster, malleability, and electrical conductivity.

Patterns in Properties of Metals