1. Ch. 3
Sec. 3 Metals

3. physical properties of a metal
• hardness
• shininess
• malleable =can be pounded into shapes
• ductile =can be pulled out into a long wire
• conductor - can transmit heat & electricity
• magnetic
• most are solids at room temp.
mercury
(except ___________ )

4. malleable
can be pounded
into shapes

5. malleable
can be pounded
into shapes

6. chemical properties of a metal
reactivity
• __________= ease & speed at
which an element combines or
reacts with other elements
• some - very reactive (ie. sodium)
• others - unreactive (ie. gold)

7. • reactivity ease & speed at
__________=
which an element combines or
reacts with other elements
• some - very reactive (ie. sodium)

8. Chunk of sodium in school pond

9. corrosion
•process of reaction &
wearing away
•ie. iron rusting

10. alloy
• mixture of metals
• ie. copper + tin= bronze

11. Metals in the Periodic Table

12. Group 1- alkali metals
– from Li  Fr (not H)
– very, very reactive
Potassium reacting with water
– have 1 valence electron
Lithium reacting with water

15. Group 2- alkaline earth metals
• 2nd column
• Be  Ra
• very reactive- never alone
• lose 2 valence electrons
• most common- Ca & Mg

19. Groups 3-12 - transition metals
• bridge between very reactive metals
& less reactive metals
– ex: Fe, Ag, Pt

20. Groups 13-16
– incl metals, nonmetals
& metalloids
– ex. Al, Sn, Pb

21. lanthanides & actinides-
rare earth elements
• found @ bottom of periodic table
• fit in periods 6 & 7
• placed at bottom for convenience

22. Neodymium, one of the lanthanide
elements, is used in manufacturing the
tiny speakers inside stereo headphones.

23. Curium, one of the actinide elements,
is used as a source of high-energy particles
that heat and provide power for certain
scientific equipment aboard the Mars
Exploration Rover.

24. synthetic elements
• elements w/ atomic # > 92
• not found naturally on Earth
• made when nuclear particles collide

25. particle accelerators
• make elements above atomic #95
• move atomic nuclei until reach very high
speeds

26. unununium

27. ununilium

28. • Element 110-118, elements with
three-letter symbols, have been
given temporary names and
symbols.
• In the future, scientists around the
world will agree on permanent
names and symbols for these
elements.