16-2 Metals

1
16-2 Metals
2
Where are metals located?

• Most metals are located to the
• left of the
• zigzag line in
• the Periodic
• Table of
• Elements.

3
What are some physical properties of metals?

• Hardness
• Shininess
• Malleability(pounded into shapes)
• Ductility(pulled out into long wires)
• Good conductors of heat and cold
• Magnetic
• Solids at room temperature
• -except mercury, Hg (liquid)
• High melting point

4
- Name that metal

• Name a metal that is
• -hard
• -shiny
• -malleable
• -ductile
• -magnetic

5
What are chemical properties of metals?

• Reactivity-Some metals are very reactive (
  sodium) and they are located on the left side of
  the periodic table.
• Some metals do not react easily ( gold).
• How do reactive metals behave?

S O D I U M
6
What is an alloy?

• An alloy is a mixture of metals.
• What do copper and tin form?
• What do copper and zinc form?
• Location - groups 3-12
• Form bridge between
• metals on the left and right
• What do iron, carbon, chromium, and vanadium make?

7
Metals in the periodic table

• Metals in a group or family have similar
  properties.
• These family properties change gradually as you
  move across the table.

8
Alkali Metals

• Alkali metals are in group 1. How many valence
  electrons do these metals have?
• They are never found in nature alone as elements,
  just compounds. Soft, shiny and often white.
• VERY reactive. Valence electron is easily
  transferred in a chemical reaction .
• Common metal sodium and potassium

9
Alkaline Earth Metals

• Located in family 2. How many valence electrons
  do they have?
• Also, not found in nature alone as elements,
  just compounds.
• Reactive less than alkali but more than other
  metals.
• Fairly hard, gray white and good conductor of
  electricity.
• Common metal magnesium and calcium

10
Transition Metals

• Very similar to one another
• Hard, shiny, good conductors of electricity
• Stable react slowly or not at all
• What is the most common metal that you can think
  of?

• Includes common metals-
• iron, copper, nickel, silver and gold

11
Metal in Mixed Groups

• Groups 13-16 are mixed groups that include
  metals, nonmetals and metalloids.
• Not as reactive as metals on the left side of the
  periodic table.
• The most familiar metals are aluminum, tin, and
  lead.

12
What is another name for the Lanthanides
Actinides?

• They are called Rare Earth metals.
• They are located at the bottom of the periodic
  table.
• These elements fit between periods 6 7.
• All of the elements after uranium in the table
  were created artificially in labs.