Today’s Agenda…

• Bellringer: Which element is more similar to Argon….Helium or Chlorine? Why?

• Discuss Venn diagrams/Writing frames

• Review The Periodic Table

• Notes on Metals

• Quiz Tomorrow!

METALS

Study Pack #3

Today’s Goals…

• I can recognize that groups of elements have similar properties.

• I understand that elements and compounds can be classified by how they react with each other and how they are used.

Metals on the Periodic Table

• Left of the zigzag line

Physical Properties

• What is a physical property?

• Hardness

• Shininess

Physical Properties

• Malleability – how well it can be pounded into shapes

• Ductility – how well it can be made into wire

• Example: Copper is both malleable and ductile

Physical Properties

• Conductors

• Magnetic

• State of matter All are solid at room temp. except mercury

Chemical Properties

• What is a chemical property?

• Reactivity – if and how quickly it combines with other elements and compounds

• Some metals react explosively when combined with other elements and compounds

Chemical Properties

• Some metals react with air to form rust

• Some metals tarnish

Metals in the Periodic Table

• Alkali Metals• Alkaline Earth Metals• Transition Metals• Mixed Group• Lanthanides and Actinides• The metals in these groups have similar

properties to each other• Change gradually as you move across the

periodic table

Alkali Metals

• Group 1• Very reactive so they are found only in

compounds• Soft and shiny

Could cut them with a plastic knife!

• Examples: Na – found in salt Li – found in batteries

Alkaline Earth Metals

• Group 2• Also found only in compounds• Fairly hard• Grey-white • Good conductors of electricity• Examples:

Mg – once found in flash bulbs Ca – found in your bones

Transition Metals

• Groups 3-12

• Even though they are in different families they are very similar to each other

• Contains most of the familiar metals

• Hard and shiny

• Some have unusual colors

Transition Metals

• Good conductors of electricity

• React slowly or not at all with air and water

• Examples: Au – coins and jewelry Fe – in your body

Mixed Group

• Groups 13-16

• Also contains nonmetals and metalloids

• Not as reactive as those on the left side

• Examples: Al Pb – automobile batteries

Lanthanides and Actinides

• At the bottom of the periodic table

• Also known as rare earth elements

• Soft and malleable

• Shiny

• High conductivity

• Examples: U – used in nuclear power plants